FT Channels
Company Details
Linkedin ID:
ft-channels
Website:
Employees number:
None employees
Number of followers:
1,557
NAICS:
511
Industry Type:
Homepage:
ft.com
IP Addresses:
0
Company ID:
FT _3064655
Scan Status:
In-progress
FT Channels Company CyberSecurity Posture
ft.com
FT Channels brings expert insights from the Financial Times and our Partners into the most pressing issues of our time, from sustainability to the global economy. Each series of videos and articles homes in on your personal interests, offering a deeper look into topics that will fascinate and inspire you.
FT Channels A.I CyberSecurity Scoring
FT Channels Risk Score (AI oriented)Between 750 and 799
FT Channels
Updated:
- Powered by our proprietary A.I cyber incident model
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FT Channels Global Score (TPRM)XXXX
FT Channels
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- Benchmark vs. industry & size peers
- Vulnerabilities
- Findings
FT Channels Company CyberSecurity News & History
Past Incidents
8
Attack Types
3
Nikkei
Breach
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: Japanese media conglomerate **Nikkei** suffered a cyber breach after hackers exploited malware on an employee’s device to steal login credentials and gain unauthorized access to its internal **Slack communication system**. The incident, discovered in September but disclosed in late November, exposed the **names, email addresses, and chat histories** of over **17,300 users**, including employees and business partners. While no journalistic sources or reporting-related data were compromised, the breach highlights vulnerabilities in internal communication platforms. Nikkei, which owns the *Financial Times* and operates globally with 3,000+ employees, reported the incident to Japanese authorities despite the leaked data not being legally classified as 'personal information' under local laws. The company emphasized plans to **strengthen personal information management** to prevent recurrence. This follows a **2022 ransomware attack** on Nikkei’s Singapore headquarters, underscoring a pattern of cyber threats targeting media organizations.
Nikkei
Breach
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: Japanese media giant Nikkei suffered a data breach after attackers infiltrated its internal Slack workspace via malware on an employee’s device, compromising Slack credentials. The intrusion exposed personal details—including names, email addresses, and chat histories—of **17,368 employees and business partners**. While Nikkei confirmed no leakage of journalistic sources or reporting activities, the exposure of internal communications poses a significant reputational risk for a media organization reliant on confidentiality. The company reported the incident to Japan’s Personal Information Protection Commission, though local laws may not have required disclosure. No evidence yet suggests the stolen data has surfaced online, but the breach highlights vulnerabilities in collaboration platforms like Slack, which have become prime targets for credential theft, phishing, and malware-driven attacks. Nikkei reset passwords and pledged to strengthen data protection measures, but the incident underscores the fragility of trust when sensitive corporate communications are exposed.
Nikkei Inc.
Breach
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: Nikkei Inc., a leading Japanese business news publisher, experienced a security breach after an employee’s personal computer was infected with malware, leading to unauthorized access to its internal Slack workspace. The incident resulted in the exfiltration of authentication credentials, exposing sensitive internal communications and personal data of up to **17,368 individuals**, including full names, email addresses, and chat histories. While no evidence suggests journalistic sources or editorial materials were compromised, the breach highlights vulnerabilities tied to personal device usage for corporate access. Nikkei responded with containment measures (password resets, access reviews) and voluntarily reported the incident to Japan’s Personal Information Protection Commission, emphasizing transparency and a commitment to strengthening data protection. No public leaks or direct misuse of the data have been confirmed to date.
Nikkei Inc.
Breach
Rankiteo Explanation
Attack with significant impact with customers data leaks
Description: Nikkei Inc., the Japanese financial news and media conglomerate (owner of the *Financial Times*), suffered a major cyber breach in **September 2024** after an employee’s infected personal computer led to stolen Slack credentials. Attackers exploited this to access Nikkei’s internal Slack workspace, exposing **sensitive data of 17,368 individuals**, including employees and business partners. Compromised information included **names, email addresses, and chat histories**, though no journalistic sources or reporting data were leaked. The breach mirrors a growing trend where criminals leverage stolen data for extortion rather than deploying ransomware. Nikkei responded with password resets, voluntary disclosure to Japan’s Personal Information Protection Commission, and a public commitment to strengthening data security. This incident follows a **2019 BEC scam** where Nikkei lost **$29 million**, highlighting persistent vulnerabilities in its cybersecurity posture. Experts noted the attack’s sophistication, as valid credentials bypassed traditional security tools (SIEM/NDR), emphasizing the need for behavioral anomaly detection.
Nikkei
Breach
Rankiteo Explanation
Attack with significant impact with customers data leaks
Description: Japanese media company Nikkei confirmed a security breach involving its Slack accounts, stemming from an employee’s personal computer infected with malware. The infection led to the leakage of Slack authentication credentials, which were then exploited to gain unauthorized access to employee accounts. The breach, discovered in September, exposed highly sensitive data—including names, email addresses, and chat histories—of **17,368 registered users**. While Nikkei implemented countermeasures like password resets and voluntarily reported the incident to Japan’s **Personal Information Protection Commission**, the breach underscores risks tied to non-corporate device access to confidential data. Notably, no compromise of **sources or reporting activities** was confirmed, but the exposure of internal communications and employee/customer data poses significant reputational and operational risks. The incident highlights vulnerabilities in third-party platform security (Slack) and the dangers of credential theft via infected personal devices.
Nikkei
Data Leak
Rankiteo Explanation
Attack limited on finance or reputation
Description: Nikkei vitnesed incidents of unauthorized access to some email accounts used by Nikkei China (Hong Kong), an overseas group company. The access raised concerns regarding the leak of personal information, including the names of customers.
Nikkei
Data Leak
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: Nikkei Inc., the publisher of the business daily The Nikkei and other media experienced a cyber security incident. Personal information on a total of 12,514 people had been leaked after a computer used by a group company employee was infected with a virus in an apparent cyberattack. The leaked information included the names and email addresses of board members, regular and part-time employees, and others at the Nikkei headquarters and some of its group companies.
Nikkei Asia
Ransomware
Rankiteo Explanation
Attack threatening the organization's existence
Description: Nikkei Group — one of the world’s largest financial news outlets — announced that its Asia headquarters in Singapore is suffering from a ransomware attack that began on May 13. The Japanese company, which owns The Nikkei and Financial Times newspapers, said in a statement Thursday that it has reported the attack to Japanese and Singaporean authorities. While the company claimed that no data leak has been confirmed, it noted that the affected server “likely contained customer data” and that investigators are in the process of “”determining the nature and scope” of the attack.
FT Channels Company Scoring based on AI Models
Cyber Incidents Likelihood 3 - 6 - 9 months
A.I Risk Score Likelihood 3 - 6 - 9 months
Underwriter Stats for FT Channels
Incidents vs Book and Periodical Publishing Industry Average (This Year)
No incidents recorded for FT Channels in 2025.
Incidents vs All-Companies Average (This Year)
No incidents recorded for FT Channels in 2025.
Incident Types FT Channels vs Book and Periodical Publishing Industry Avg (This Year)
No incidents recorded for FT Channels in 2025.
Incident History — FT Channels (X = Date, Y = Severity)
FT Channels cyber incidents detection timeline including parent company and subsidiaries
FT Channels Company Subsidiaries
FT Channels brings expert insights from the Financial Times and our Partners into the most pressing issues of our time, from sustainability to the global economy. Each series of videos and articles homes in on your personal interests, offering a deeper look into topics that will fascinate and inspire you.
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Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
FT Channels CyberSecurity History Information
Official Website of FT Channels
The official website of FT Channels is https://channels.ft.com/.
FT Channels’s AI-Generated Cybersecurity Score
According to Rankiteo, FT Channels’s AI-generated cybersecurity score is 753, reflecting their Fair security posture.
How many security badges does FT Channels’ have ?
According to Rankiteo, FT Channels currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Does FT Channels have SOC 2 Type 1 certification ?
According to Rankiteo, FT Channels is not certified under SOC 2 Type 1.
Does FT Channels have SOC 2 Type 2 certification ?
According to Rankiteo, FT Channels does not hold a SOC 2 Type 2 certification.
Does FT Channels comply with GDPR ?
According to Rankiteo, FT Channels is not listed as GDPR compliant.
Does FT Channels have PCI DSS certification ?
According to Rankiteo, FT Channels does not currently maintain PCI DSS compliance.
Does FT Channels comply with HIPAA ?
According to Rankiteo, FT Channels is not compliant with HIPAA regulations.
Does FT Channels have ISO 27001 certification ?
According to Rankiteo,FT Channels is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of FT Channels
FT Channels operates primarily in the Book and Periodical Publishing industry.
Number of Employees at FT Channels
FT Channels employs approximately None employees people worldwide.
Subsidiaries Owned by FT Channels
FT Channels presently has no subsidiaries across any sectors.
FT Channels’s LinkedIn Followers
FT Channels’s official LinkedIn profile has approximately 1,557 followers.
NAICS Classification of FT Channels
FT Channels is classified under the NAICS code 511, which corresponds to Publishing Industries (except Internet).
FT Channels’s Presence on Crunchbase
No, FT Channels does not have a profile on Crunchbase.
FT Channels’s Presence on LinkedIn
Yes, FT Channels maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/ft-channels.
Cybersecurity Incidents Involving FT Channels
As of November 28, 2025, Rankiteo reports that FT Channels has experienced 8 cybersecurity incidents.
Number of Peer and Competitor Companies
FT Channels has an estimated 4,881 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at FT Channels ?
Incident Types: The types of cybersecurity incidents that have occurred include Breach, Ransomware and Data Leak.
How does FT Channels detect and respond to cybersecurity incidents ?
Detection and Response: The company detects and responds to cybersecurity incidents through an law enforcement notified with yes, and and containment measures with password resets for affected accounts, containment measures with access reviews, containment measures with revoking compromised credentials, and remediation measures with reinforcing data protection measures, remediation measures with reviewing access controls for slack, and communication strategy with voluntary notification to personal information protection commission, communication strategy with public disclosure for transparency, and enhanced monitoring with monitoring for unauthorized access or data leaks, and and remediation measures with strengthening personal information management, and communication strategy with public disclosure, communication strategy with voluntary reporting to japan’s data protection authorities, and and containment measures with password resets for affected accounts, containment measures with access revocation for compromised credentials, and remediation measures with strengthening personal information management, remediation measures with enhanced monitoring for unusual activity, and communication strategy with voluntary disclosure to personal information protection commission (japan), communication strategy with public statement emphasizing no leakage of journalistic sources, and enhanced monitoring with planned (to detect anomalous user behavior), and and law enforcement notified with japan's personal information protection commission (voluntary), and containment measures with password resets for affected accounts, and remediation measures with strengthening personal information management protocols, and communication strategy with public disclosure, communication strategy with internal notifications, and enhanced monitoring with planned (for collaboration platforms), and incident response plan activated with yes (password changes implemented), and containment measures with password resets, and communication strategy with public statement & voluntary regulatory disclosure..
Incident Details
Can you provide details on each incident ?
Title: Ransomware Attack on Nikkei Group Asia Headquarters
Description: Nikkei Group's Asia headquarters in Singapore suffered a ransomware attack starting on May 13. The company reported the attack to Japanese and Singaporean authorities. While no data leak has been confirmed, the affected server likely contained customer data. Investigators are determining the nature and scope of the attack.
Date Detected: 2023-05-13
Type: Ransomware
Title: Unauthorized Access to Nikkei China (Hong Kong) Email Accounts
Description: Nikkei witnessed incidents of unauthorized access to some email accounts used by Nikkei China (Hong Kong), an overseas group company. The access raised concerns regarding the leak of personal information, including the names of customers.
Type: Unauthorized Access
Attack Vector: Email Account Compromise
Title: Nikkei Inc. Cyber Security Incident
Description: Nikkei Inc., the publisher of the business daily The Nikkei and other media, experienced a cyber security incident where personal information on a total of 12,514 people was leaked after a computer used by a group company employee was infected with a virus in an apparent cyberattack.
Type: Data Breach
Attack Vector: Virus Infection
Title: Unauthorized Access to Nikkei Inc.'s Internal Slack Workspace via Malware-Infected Personal Computer
Description: Nikkei Inc., one of Japan’s largest business news publishers, disclosed that its internal Slack workspace suffered unauthorized access due to the malware infection of an employee’s personal computer. The breach resulted in the exfiltration of authentication credentials, raising concerns over the potential leakage of sensitive internal communication and personal information. Up to 17,368 individuals may be affected, with leaked information potentially including full names, email addresses, and chat histories. No evidence suggests journalistic sources or editorial materials were accessed.
Date Detected: 2023-09
Type: Data Breach
Attack Vector: Malware Infection on Personal DeviceCredential Stuffing/Reuse
Vulnerability Exploited: Weak/Leaked CredentialsLack of Multi-Factor Authentication (MFA) on SlackUse of Personal Device for Corporate Access
Title: Nikkei Slack Communication System Data Breach
Description: Japanese media giant Nikkei reported that hackers gained unauthorized access to its internal Slack communication system, potentially exposing data linked to over 17,000 people. The breach occurred after an employee’s computer was infected with malware, allowing attackers to steal login credentials and access Slack. Exposed data may include names, email addresses, and chat histories of employees and business partners, though no evidence suggests compromise of journalistic sources or reporting-related information.
Date Detected: 2023-09
Date Publicly Disclosed: 2023-10-17
Type: Data Breach (Unauthorized Access)
Attack Vector: Malware infection on employee's computer leading to credential theft
Title: Nikkei Inc. Data Breach via Compromised Slack Account
Description: Nikkei Inc., a major Japanese financial news and media group, experienced a significant data breach after attackers gained unauthorized access to its internal Slack workspace through a stolen employee account. The breach exposed sensitive personal information of over 17,000 individuals, including names, email addresses, and chat histories. The incident was discovered in September 2024 and traced back to malware infecting an employee's personal computer, which allowed credential theft. Nikkei responded with containment measures, including password resets, and voluntarily disclosed the incident to Japanese authorities despite no legal obligation to do so.
Date Detected: 2024-09
Type: Data Breach
Attack Vector: Malware InfectionStolen CredentialsCompromised Slack Account
Vulnerability Exploited: Weak Endpoint SecurityLack of Multi-Factor Authentication (MFA)Insufficient Behavioral Monitoring for Authorized Users
Motivation: Data Theft for ExtortionPotential Sale of Stolen Data on Dark Web
Title: Nikkei Slack Data Breach Exposes 17,000+ Employee and Business Partner Details
Description: Japanese media company Nikkei suffered a data breach after attackers infiltrated its internal Slack workspace via malware on an employee's device. The breach exposed personal details of 17,368 employees and business partners, including names, email addresses, and Slack chat histories. Nikkei reported the incident to Japan's Personal Information Protection Commission, though not legally required. No evidence of leaked source or reporting data was found, but internal communications were compromised. The company reset passwords and pledged to strengthen data protection measures.
Type: data breach
Attack Vector: malwarecredential theftcompromised employee device
Vulnerability Exploited: weak endpoint securitylack of multi-factor authentication (MFA) on Slackinsufficient monitoring of collaboration platforms
Motivation: data exfiltrationpotential espionagefinancial gain (hypothetical)
Title: Nikkei Slack Account Security Breach
Description: Japanese media company Nikkei confirmed a security breach of its Slack accounts, potentially leaking highly sensitive information from over 17,000 users. The breach occurred after an employee’s personal computer was infected with a virus, leading to the leakage of Slack authentication credentials. Unauthorized access was gained to employee accounts, exposing names, email addresses, and chat histories of 17,368 individuals. The incident was identified in September, and countermeasures such as password changes were implemented. Nikkei voluntarily reported the incident to Japan’s Personal Information Protection Commission, confirming no leakage of information related to sources or reporting activities.
Date Detected: 2023-09
Type: Data Breach / Unauthorized Access
Attack Vector: Malware Infection (via Personal Device)
Vulnerability Exploited: Weak Authentication Credentials / Use of Non-Corporate Devices
What are the most common types of attacks the company has faced ?
Common Attack Types: The most common types of attacks the company has faced is Breach.
How does the company identify the attack vectors used in incidents ?
Identification of Attack Vectors: The company identifies the attack vectors used in incidents through Email Accounts, Malware-infected personal computer of an employee, Employee’s malware-infected computer, Employee's Personal Computer (Malware Infection), malware-infected employee device and Employee’s Personal Computer (Malware Infection).
Impact of the Incidents
What was the impact of each incident ?
Incident : Ransomware NIK174123522
Data Compromised: Customer data
Incident : Unauthorized Access NIK2344291222
Data Compromised: Personal information, Customer names
Incident : Data Breach NIK1332301222
Data Compromised: Names, Email addresses
Incident : Data Breach NIK31101431110425
Data Compromised: Full names, Email addresses, Slack chat histories (internal communications)
Systems Affected: Slack Workspace
Operational Impact: Potential Disruption to Internal CommunicationInvestigation and Remediation Efforts
Brand Reputation Impact: Potential Erosion of Trust Among Employees and Stakeholders
Identity Theft Risk: ['Moderate (Due to Exposed PII)']
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Data Compromised: Names, Email addresses, Chat histories
Systems Affected: Internal Slack communication system
Brand Reputation Impact: Potential reputational harm due to exposure of sensitive communication data
Identity Theft Risk: Low (no financial or highly sensitive personal data confirmed compromised)
Incident : Data Breach NIK1702217110625
Data Compromised: Names, Email addresses, Slack chat histories
Systems Affected: Slack Workspace
Operational Impact: Disruption to Internal CommunicationPotential Trust Erosion with Business Partners
Brand Reputation Impact: Moderate to High (Given Global Reach and Previous BEC Incident in 2019)
Identity Theft Risk: ['Moderate (Exposed PII Could Be Used for Phishing or Fraud)']
Incident : data breach NIK0732907110625
Data Compromised: Names, Email addresses, Slack chat histories (including potentially sensitive internal communications)
Systems Affected: Slack workspaceemployee device (initial infection point)
Operational Impact: disruption to internal communicationspotential loss of confidential discussions
Brand Reputation Impact: high (media company built on confidentiality)erosion of trust among sources/partners
Legal Liabilities: voluntary reporting to Japan's Personal Information Protection Commission (no confirmed legal obligation)
Identity Theft Risk: ['moderate (names + email addresses exposed)']
Incident : Data Breach / Unauthorized Access NIK1702217110725
Data Compromised: Names, Email addresses, Chat histories
Systems Affected: Slack Accounts
Brand Reputation Impact: Potential Reputation Damage (Voluntary Disclosure to Regulators)
Identity Theft Risk: Low to Moderate (PII Exposed)
What types of data are most commonly compromised in incidents ?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Personal Information, Customer Names, , Names, Email Addresses, , Personal Identifiable Information (Pii), Internal Communications, , Names, Email Addresses, Chat Histories, , Personally Identifiable Information (Pii), Corporate Communication Data, , Personal Identifiable Information (Pii), Corporate Communications, , Personal Identifiable Information (Pii), Communication Data and .
Which entities were affected by each incident ?
Incident : Ransomware NIK174123522
Entity Name: Nikkei Group
Entity Type: Corporation
Industry: Media
Location: Singapore
Incident : Unauthorized Access NIK2344291222
Entity Name: Nikkei China (Hong Kong)
Entity Type: Overseas Group Company
Location: Hong Kong
Incident : Data Breach NIK31101431110425
Entity Name: Nikkei Inc.
Entity Type: Media Organization
Industry: Publishing, News, Financial Reporting
Location: Japan (with international operations)
Size: Large (Owns Financial Times, Nihon Keizai Shimbun)
Customers Affected: 17,368 individuals
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Entity Name: Nikkei Inc.
Entity Type: Media Conglomerate
Industry: Media/Publishing
Location: Japan (global operations, including 37 overseas editorial bureaus)
Size: 3,000+ employees
Customers Affected: 17,300+ (Slack users including employees and business partners)
Incident : Data Breach NIK1702217110625
Entity Name: Nikkei Inc.
Entity Type: Media Corporation
Industry: Financial News, Publishing
Location: Japan (Global Operations)
Size: Large (One of the World's Largest Media Corporations)
Customers Affected: 17,368 (Employees and Business Partners)
Incident : data breach NIK0732907110625
Entity Name: Nikkei Inc.
Entity Type: media company
Industry: publishing, news media, financial information services
Location: Japan
Size: large enterprise
Customers Affected: 17,368 (employees and business partners)
Incident : Data Breach / Unauthorized Access NIK1702217110725
Entity Name: Nikkei Inc.
Entity Type: Media Company
Industry: Media/Publishing
Location: Japan
Customers Affected: 17,368
Response to the Incidents
What measures were taken in response to each incident ?
Incident : Ransomware NIK174123522
Law Enforcement Notified: Yes
Incident : Data Breach NIK31101431110425
Incident Response Plan Activated: True
Containment Measures: Password Resets for Affected AccountsAccess ReviewsRevoking Compromised Credentials
Remediation Measures: Reinforcing Data Protection MeasuresReviewing Access Controls for Slack
Communication Strategy: Voluntary Notification to Personal Information Protection CommissionPublic Disclosure for Transparency
Enhanced Monitoring: Monitoring for Unauthorized Access or Data Leaks
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Incident Response Plan Activated: True
Remediation Measures: Strengthening personal information management
Communication Strategy: Public disclosureVoluntary reporting to Japan’s data protection authorities
Incident : Data Breach NIK1702217110625
Incident Response Plan Activated: True
Containment Measures: Password Resets for Affected AccountsAccess Revocation for Compromised Credentials
Remediation Measures: Strengthening Personal Information ManagementEnhanced Monitoring for Unusual Activity
Communication Strategy: Voluntary Disclosure to Personal Information Protection Commission (Japan)Public Statement Emphasizing No Leakage of Journalistic Sources
Enhanced Monitoring: Planned (To Detect Anomalous User Behavior)
Incident : data breach NIK0732907110625
Incident Response Plan Activated: True
Law Enforcement Notified: Japan's Personal Information Protection Commission (voluntary),
Containment Measures: password resets for affected accounts
Remediation Measures: strengthening personal information management protocols
Communication Strategy: public disclosureinternal notifications
Enhanced Monitoring: planned (for collaboration platforms)
Incident : Data Breach / Unauthorized Access NIK1702217110725
Incident Response Plan Activated: Yes (Password Changes Implemented)
Containment Measures: Password Resets
Communication Strategy: Public Statement & Voluntary Regulatory Disclosure
What is the company's incident response plan?
Incident Response Plan: The company's incident response plan is described as Yes (Password Changes Implemented).
Data Breach Information
What type of data was compromised in each breach ?
Incident : Unauthorized Access NIK2344291222
Type of Data Compromised: Personal information, Customer names
Incident : Data Breach NIK1332301222
Type of Data Compromised: Names, Email addresses
Number of Records Exposed: 12514
Incident : Data Breach NIK31101431110425
Type of Data Compromised: Personal identifiable information (pii), Internal communications
Number of Records Exposed: 17,368
Sensitivity of Data: Moderate (PII and Internal Chats, but No Journalistic Sources or Editorial Materials)
File Types Exposed: Slack Messages/LogsUser Profiles
Personally Identifiable Information: Full NamesEmail Addresses
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Type of Data Compromised: Names, Email addresses, Chat histories
Number of Records Exposed: 17,300+
Sensitivity of Data: Moderate (business communications, no journalistic sources or financial data confirmed)
File Types Exposed: Slack messages/logs
Personally Identifiable Information: NamesEmail addresses
Incident : Data Breach NIK1702217110625
Type of Data Compromised: Personally identifiable information (pii), Corporate communication data
Number of Records Exposed: 17,368
Sensitivity of Data: Moderate (No Journalistic Sources or Highly Sensitive Financial Data Compromised)
File Types Exposed: Slack Messages/LogsUser Profiles
Personally Identifiable Information: NamesEmail Addresses
Incident : data breach NIK0732907110625
Type of Data Compromised: Personal identifiable information (pii), Corporate communications
Number of Records Exposed: 17,368
Sensitivity of Data: moderate to high (internal chat histories for a media company)
Data Exfiltration: confirmed (data accessed)no evidence of public leakage yet
File Types Exposed: Slack messagespotentially shared documents/files
Personally Identifiable Information: namesemail addresses
Incident : Data Breach / Unauthorized Access NIK1702217110725
Type of Data Compromised: Personal identifiable information (pii), Communication data
Number of Records Exposed: 17,368
Sensitivity of Data: Moderate (Names, Email Addresses, Chat Histories)
Data Exfiltration: Likely (Unauthorized Access Confirmed)
Personally Identifiable Information: Yes (Names, Email Addresses)
What measures does the company take to prevent data exfiltration ?
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Reinforcing Data Protection Measures, Reviewing Access Controls for Slack, , Strengthening personal information management, , Strengthening Personal Information Management, Enhanced Monitoring for Unusual Activity, , strengthening personal information management protocols, .
How does the company handle incidents involving personally identifiable information (PII) ?
Handling of PII Incidents: The company handles incidents involving personally identifiable information (PII) through by password resets for affected accounts, access reviews, revoking compromised credentials, , password resets for affected accounts, access revocation for compromised credentials, , password resets for affected accounts, , password resets and .
Ransomware Information
Was ransomware involved in any of the incidents ?
Incident : Data Breach NIK1702217110625
Data Exfiltration: True
Regulatory Compliance
Were there any regulatory violations and fines imposed for each incident ?
Incident : Ransomware NIK174123522
Regulatory Notifications: Japanese and Singaporean authorities
Incident : Data Breach NIK31101431110425
Regulatory Notifications: Voluntary Notification to Japan’s Personal Information Protection Commission (PIPC)
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Regulatory Notifications: Voluntarily reported to Japan’s data protection authorities (despite no legal obligation)
Incident : Data Breach NIK1702217110625
Regulatory Notifications: Voluntary Notification to Personal Information Protection Commission (Japan)
Incident : data breach NIK0732907110625
Regulatory Notifications: Japan's Personal Information Protection Commission (voluntary)
Incident : Data Breach / Unauthorized Access NIK1702217110725
Regulatory Notifications: Japan’s Personal Information Protection Commission (Voluntary Report)
Lessons Learned and Recommendations
What lessons were learned from each incident ?
Incident : Data Breach NIK31101431110425
Lessons Learned: Risks of using personal devices for corporate access, especially for communication platforms like Slack., Importance of enforcing MFA and strong credential policies for all corporate systems, including third-party tools., Need for continuous monitoring of anomalous logins and access patterns.
Incident : Data Breach NIK1702217110625
Lessons Learned: Authorized but anomalous user activity (e.g., mass data scraping) is difficult to detect with traditional SIEM/NDR tools due to encrypted traffic and valid credentials., Initial malware infection was a precursor to credential theft, highlighting the need for endpoint security and behavioral analytics., Media organizations are increasingly targeted for non-ransomware data extortion (e.g., threats to leak stolen data)., Voluntary transparency can mitigate reputational damage even when not legally required.
Incident : data breach NIK0732907110625
Lessons Learned: Collaboration platforms (Slack, Teams, etc.) are high-value targets requiring robust security controls, Endpoint security is critical to prevent initial malware infections, Media organizations must prioritize protecting internal communications to maintain source confidentiality, Voluntary disclosure can demonstrate transparency even when not legally required
Incident : Data Breach / Unauthorized Access NIK1702217110725
Lessons Learned: Risks associated with allowing non-corporate devices to access confidential corporate data; importance of robust authentication and endpoint security for remote/work-from-home setups.
What recommendations were made to prevent future incidents ?
Incident : Data Breach NIK31101431110425
Recommendations: Implement Mandatory Multi-Factor Authentication (MFA) for all corporate accounts, including Slack., Enforce stricter policies on the use of personal devices for accessing corporate systems., Conduct regular security awareness training to educate employees on phishing and malware risks., Deploy endpoint detection and response (EDR) solutions to monitor and block malware infections on personal devices used for work., Segment corporate networks to limit lateral movement in case of credential compromise.Implement Mandatory Multi-Factor Authentication (MFA) for all corporate accounts, including Slack., Enforce stricter policies on the use of personal devices for accessing corporate systems., Conduct regular security awareness training to educate employees on phishing and malware risks., Deploy endpoint detection and response (EDR) solutions to monitor and block malware infections on personal devices used for work., Segment corporate networks to limit lateral movement in case of credential compromise.Implement Mandatory Multi-Factor Authentication (MFA) for all corporate accounts, including Slack., Enforce stricter policies on the use of personal devices for accessing corporate systems., Conduct regular security awareness training to educate employees on phishing and malware risks., Deploy endpoint detection and response (EDR) solutions to monitor and block malware infections on personal devices used for work., Segment corporate networks to limit lateral movement in case of credential compromise.Implement Mandatory Multi-Factor Authentication (MFA) for all corporate accounts, including Slack., Enforce stricter policies on the use of personal devices for accessing corporate systems., Conduct regular security awareness training to educate employees on phishing and malware risks., Deploy endpoint detection and response (EDR) solutions to monitor and block malware infections on personal devices used for work., Segment corporate networks to limit lateral movement in case of credential compromise.Implement Mandatory Multi-Factor Authentication (MFA) for all corporate accounts, including Slack., Enforce stricter policies on the use of personal devices for accessing corporate systems., Conduct regular security awareness training to educate employees on phishing and malware risks., Deploy endpoint detection and response (EDR) solutions to monitor and block malware infections on personal devices used for work., Segment corporate networks to limit lateral movement in case of credential compromise.
Incident : Data Breach NIK1702217110625
Recommendations: Implement Multi-Factor Authentication (MFA) for all critical systems, including Slack., Deploy User and Entity Behavior Analytics (UEBA) to detect anomalous actions by authorized users., Enhance endpoint security to prevent malware infections that lead to credential theft., Conduct regular red-team exercises to test detection capabilities for lateral movement and data exfiltration., Expand SIEM rules to flag unusual data access patterns (e.g., bulk downloads of chat histories)., Evaluate Network Detection and Response (NDR) solutions capable of inspecting encrypted traffic metadata for anomalies.Implement Multi-Factor Authentication (MFA) for all critical systems, including Slack., Deploy User and Entity Behavior Analytics (UEBA) to detect anomalous actions by authorized users., Enhance endpoint security to prevent malware infections that lead to credential theft., Conduct regular red-team exercises to test detection capabilities for lateral movement and data exfiltration., Expand SIEM rules to flag unusual data access patterns (e.g., bulk downloads of chat histories)., Evaluate Network Detection and Response (NDR) solutions capable of inspecting encrypted traffic metadata for anomalies.Implement Multi-Factor Authentication (MFA) for all critical systems, including Slack., Deploy User and Entity Behavior Analytics (UEBA) to detect anomalous actions by authorized users., Enhance endpoint security to prevent malware infections that lead to credential theft., Conduct regular red-team exercises to test detection capabilities for lateral movement and data exfiltration., Expand SIEM rules to flag unusual data access patterns (e.g., bulk downloads of chat histories)., Evaluate Network Detection and Response (NDR) solutions capable of inspecting encrypted traffic metadata for anomalies.Implement Multi-Factor Authentication (MFA) for all critical systems, including Slack., Deploy User and Entity Behavior Analytics (UEBA) to detect anomalous actions by authorized users., Enhance endpoint security to prevent malware infections that lead to credential theft., Conduct regular red-team exercises to test detection capabilities for lateral movement and data exfiltration., Expand SIEM rules to flag unusual data access patterns (e.g., bulk downloads of chat histories)., Evaluate Network Detection and Response (NDR) solutions capable of inspecting encrypted traffic metadata for anomalies.Implement Multi-Factor Authentication (MFA) for all critical systems, including Slack., Deploy User and Entity Behavior Analytics (UEBA) to detect anomalous actions by authorized users., Enhance endpoint security to prevent malware infections that lead to credential theft., Conduct regular red-team exercises to test detection capabilities for lateral movement and data exfiltration., Expand SIEM rules to flag unusual data access patterns (e.g., bulk downloads of chat histories)., Evaluate Network Detection and Response (NDR) solutions capable of inspecting encrypted traffic metadata for anomalies.Implement Multi-Factor Authentication (MFA) for all critical systems, including Slack., Deploy User and Entity Behavior Analytics (UEBA) to detect anomalous actions by authorized users., Enhance endpoint security to prevent malware infections that lead to credential theft., Conduct regular red-team exercises to test detection capabilities for lateral movement and data exfiltration., Expand SIEM rules to flag unusual data access patterns (e.g., bulk downloads of chat histories)., Evaluate Network Detection and Response (NDR) solutions capable of inspecting encrypted traffic metadata for anomalies.
Incident : data breach NIK0732907110625
Recommendations: Implement multi-factor authentication (MFA) for all collaboration platforms, Enhance endpoint detection and response (EDR) capabilities, Conduct regular security audits of third-party SaaS applications, Provide employee training on securing workplace chat systems, Monitor dark web for potential data leaks, Consider network segmentation for sensitive communication channelsImplement multi-factor authentication (MFA) for all collaboration platforms, Enhance endpoint detection and response (EDR) capabilities, Conduct regular security audits of third-party SaaS applications, Provide employee training on securing workplace chat systems, Monitor dark web for potential data leaks, Consider network segmentation for sensitive communication channelsImplement multi-factor authentication (MFA) for all collaboration platforms, Enhance endpoint detection and response (EDR) capabilities, Conduct regular security audits of third-party SaaS applications, Provide employee training on securing workplace chat systems, Monitor dark web for potential data leaks, Consider network segmentation for sensitive communication channelsImplement multi-factor authentication (MFA) for all collaboration platforms, Enhance endpoint detection and response (EDR) capabilities, Conduct regular security audits of third-party SaaS applications, Provide employee training on securing workplace chat systems, Monitor dark web for potential data leaks, Consider network segmentation for sensitive communication channelsImplement multi-factor authentication (MFA) for all collaboration platforms, Enhance endpoint detection and response (EDR) capabilities, Conduct regular security audits of third-party SaaS applications, Provide employee training on securing workplace chat systems, Monitor dark web for potential data leaks, Consider network segmentation for sensitive communication channelsImplement multi-factor authentication (MFA) for all collaboration platforms, Enhance endpoint detection and response (EDR) capabilities, Conduct regular security audits of third-party SaaS applications, Provide employee training on securing workplace chat systems, Monitor dark web for potential data leaks, Consider network segmentation for sensitive communication channels
Incident : Data Breach / Unauthorized Access NIK1702217110725
Recommendations: Enforce stricter policies on the use of personal devices for corporate access., Implement multi-factor authentication (MFA) for Slack and other critical platforms., Enhance endpoint detection and response (EDR) capabilities to prevent malware infections., Conduct regular security awareness training for employees on phishing and malware risks., Monitor and audit third-party/remote access to corporate systems.Enforce stricter policies on the use of personal devices for corporate access., Implement multi-factor authentication (MFA) for Slack and other critical platforms., Enhance endpoint detection and response (EDR) capabilities to prevent malware infections., Conduct regular security awareness training for employees on phishing and malware risks., Monitor and audit third-party/remote access to corporate systems.Enforce stricter policies on the use of personal devices for corporate access., Implement multi-factor authentication (MFA) for Slack and other critical platforms., Enhance endpoint detection and response (EDR) capabilities to prevent malware infections., Conduct regular security awareness training for employees on phishing and malware risks., Monitor and audit third-party/remote access to corporate systems.Enforce stricter policies on the use of personal devices for corporate access., Implement multi-factor authentication (MFA) for Slack and other critical platforms., Enhance endpoint detection and response (EDR) capabilities to prevent malware infections., Conduct regular security awareness training for employees on phishing and malware risks., Monitor and audit third-party/remote access to corporate systems.Enforce stricter policies on the use of personal devices for corporate access., Implement multi-factor authentication (MFA) for Slack and other critical platforms., Enhance endpoint detection and response (EDR) capabilities to prevent malware infections., Conduct regular security awareness training for employees on phishing and malware risks., Monitor and audit third-party/remote access to corporate systems.
What are the key lessons learned from past incidents ?
Key Lessons Learned: The key lessons learned from past incidents are Risks of using personal devices for corporate access, especially for communication platforms like Slack.,Importance of enforcing MFA and strong credential policies for all corporate systems, including third-party tools.,Need for continuous monitoring of anomalous logins and access patterns.Authorized but anomalous user activity (e.g., mass data scraping) is difficult to detect with traditional SIEM/NDR tools due to encrypted traffic and valid credentials.,Initial malware infection was a precursor to credential theft, highlighting the need for endpoint security and behavioral analytics.,Media organizations are increasingly targeted for non-ransomware data extortion (e.g., threats to leak stolen data).,Voluntary transparency can mitigate reputational damage even when not legally required.Collaboration platforms (Slack, Teams, etc.) are high-value targets requiring robust security controls,Endpoint security is critical to prevent initial malware infections,Media organizations must prioritize protecting internal communications to maintain source confidentiality,Voluntary disclosure can demonstrate transparency even when not legally requiredRisks associated with allowing non-corporate devices to access confidential corporate data; importance of robust authentication and endpoint security for remote/work-from-home setups.
References
Where can I find more information about each incident ?
Incident : Data Breach NIK31101431110425
Source: Nikkei Inc. Official Statement (via media reports)
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Source: Nikkei official statement (via media reports)
Date Accessed: 2023-10-17
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Source: Reuters/Associated Press coverage of the incident
Date Accessed: 2023-10-17
Incident : Data Breach NIK1702217110625
Source: Hackread.com
Incident : Data Breach NIK1702217110625
Source: Nikkei Inc. Official Statement
Incident : Data Breach NIK1702217110625
Source: DeepTempo Research (Mayank Kumar, Founding AI Engineer)
Incident : data breach NIK0732907110625
Source: The Register
URL: https://www.theregister.com/2023/XX/XX/nikkei_slack_breach/
Incident : data breach NIK0732907110625
Source: Nikkei Official Statement
Incident : data breach NIK0732907110625
Source: Proofpoint Research on Collaboration Platform Attacks
Incident : Data Breach / Unauthorized Access NIK1702217110725
Source: Nikkei Official Statement
Where can stakeholders find additional resources on cybersecurity best practices ?
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Nikkei Inc. Official Statement (via media reports), and Source: Nikkei official statement (via media reports)Date Accessed: 2023-10-17, and Source: Reuters/Associated Press coverage of the incidentDate Accessed: 2023-10-17, and Source: Hackread.com, and Source: Nikkei Inc. Official Statement, and Source: DeepTempo Research (Mayank Kumar, Founding AI Engineer), and Source: The RegisterUrl: https://www.theregister.com/2023/XX/XX/nikkei_slack_breach/, and Source: Nikkei Official Statement, and Source: Proofpoint Research on Collaboration Platform Attacks, and Source: Nikkei Official Statement.
Investigation Status
What is the current status of the investigation for each incident ?
Incident : Ransomware NIK174123522
Investigation Status: Ongoing
Incident : Data Breach NIK31101431110425
Investigation Status: Ongoing (No public leaks observed as of disclosure)
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Investigation Status: Ongoing (no attribution or root cause beyond malware infection disclosed)
Incident : Data Breach NIK1702217110625
Investigation Status: Ongoing (Root Cause Analysis and Remediation in Progress)
Incident : data breach NIK0732907110625
Investigation Status: ongoing (no evidence of data appearing online yet)
Incident : Data Breach / Unauthorized Access NIK1702217110725
Investigation Status: Ongoing (Incident Identified in September; No Further Updates)
How does the company communicate the status of incident investigations to stakeholders ?
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through Voluntary Notification To Personal Information Protection Commission, Public Disclosure For Transparency, Public Disclosure, Voluntary Reporting To Japan’S Data Protection Authorities, Voluntary Disclosure To Personal Information Protection Commission (Japan), Public Statement Emphasizing No Leakage Of Journalistic Sources, Public Disclosure, Internal Notifications and Public Statement & Voluntary Regulatory Disclosure.
Stakeholder and Customer Advisories
Were there any advisories issued to stakeholders or customers for each incident ?
Incident : Data Breach NIK31101431110425
Stakeholder Advisories: Internal Communication To Employees About The Breach And Remediation Steps..
Incident : Data Breach NIK1702217110625
Stakeholder Advisories: Internal Communication To Employees And Business Partners About The Breach And Mitigation Steps.
Incident : data breach NIK0732907110625
Stakeholder Advisories: Internal Communications To Employees And Business Partners.
Incident : Data Breach / Unauthorized Access NIK1702217110725
Customer Advisories: Public disclosure via statement; no direct customer advisories mentioned.
What advisories does the company provide to stakeholders and customers following an incident ?
Advisories Provided: The company provides the following advisories to stakeholders and customers following an incident: were Internal Communication To Employees About The Breach And Remediation Steps., Internal Communication To Employees And Business Partners About The Breach And Mitigation Steps, Internal Communications To Employees And Business Partners and Public disclosure via statement; no direct customer advisories mentioned..
Initial Access Broker
How did the initial access broker gain entry for each incident ?
Incident : Unauthorized Access NIK2344291222
Entry Point: Email Accounts
Incident : Data Breach NIK31101431110425
Entry Point: Malware-infected personal computer of an employee
High Value Targets: Slack Workspace Credentials,
Data Sold on Dark Web: Slack Workspace Credentials,
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Entry Point: Employee’s malware-infected computer
Incident : Data Breach NIK1702217110625
Entry Point: Employee'S Personal Computer (Malware Infection),
High Value Targets: Slack Workspace (Internal Communication Data),
Data Sold on Dark Web: Slack Workspace (Internal Communication Data),
Incident : data breach NIK0732907110625
Entry Point: Malware-Infected Employee Device,
High Value Targets: Slack Workspace, Internal Communications,
Data Sold on Dark Web: Slack Workspace, Internal Communications,
Incident : Data Breach / Unauthorized Access NIK1702217110725
Entry Point: Employee’s Personal Computer (Malware Infection)
High Value Targets: Slack Authentication Credentials,
Data Sold on Dark Web: Slack Authentication Credentials,
Post-Incident Analysis
What were the root causes and corrective actions taken for each incident ?
Incident : Data Breach NIK31101431110425
Root Causes: Malware Infection On An Employee’S Personal Computer Leading To Credential Theft., Lack Of Mfa Or Sufficient Access Controls For Slack., Use Of Personal Devices For Corporate Communication Without Adequate Security Measures.,
Corrective Actions: Password Resets And Access Reviews For Slack Accounts., Enhanced Monitoring For Anomalous Logins., Commitment To Reinforcing Data Protection Measures To Prevent Recurrence.,
Incident : Data Breach (Unauthorized Access) NIK3992039110525
Root Causes: Malware Infection On Employee Device, Credential Theft Leading To Slack Access,
Corrective Actions: Strengthening Personal Information Management,
Incident : Data Breach NIK1702217110625
Root Causes: Inadequate Endpoint Protection Leading To Malware Infection., Lack Of Mfa For Slack Accounts, Enabling Credential Stuffing., Insufficient Behavioral Monitoring To Detect Anomalous Data Access By Authorized Users., Encrypted Traffic Hindered Payload Inspection By Ndr Tools.,
Corrective Actions: Mandatory Mfa For All Corporate Accounts., Deployment Of Ueba Tools To Detect Unusual User Behavior., Enhanced Endpoint Detection And Response (Edr) Solutions., Review Of Siem/Ndr Configurations To Improve Detection Of Encrypted Exfiltration., Employee Training On Recognizing Phishing/Malware Threats.,
Incident : data breach NIK0732907110625
Root Causes: Inadequate Endpoint Protection Leading To Malware Infection, Potential Lack Of Mfa On Slack Accounts, Insufficient Monitoring Of Collaboration Platform Access, Possible Over-Reliance On Perimeter Security Without Internal Controls,
Corrective Actions: Password Reset For All Affected Accounts, Enhanced Personal Information Management Protocols, Planned Strengthening Of Collaboration Platform Security,
Incident : Data Breach / Unauthorized Access NIK1702217110725
Root Causes: Use Of Personal (Non-Corporate) Device For Accessing Corporate Slack Accounts., Inadequate Endpoint Security Leading To Malware Infection., Weak Authentication Mechanisms (Credentials Compromised).,
Corrective Actions: Password Resets For Affected Accounts., Voluntary Reporting To Regulatory Body (Transparency Measure)., Likely Review Of Remote Access And Byod (Bring Your Own Device) Policies.,
What is the company's process for conducting post-incident analysis ?
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as Monitoring For Unauthorized Access Or Data Leaks, , Planned (To Detect Anomalous User Behavior), , Planned (For Collaboration Platforms), .
What corrective actions has the company taken based on post-incident analysis ?
Corrective Actions Taken: The company has taken the following corrective actions based on post-incident analysis: Password Resets And Access Reviews For Slack Accounts., Enhanced Monitoring For Anomalous Logins., Commitment To Reinforcing Data Protection Measures To Prevent Recurrence., , Strengthening Personal Information Management, , Mandatory Mfa For All Corporate Accounts., Deployment Of Ueba Tools To Detect Unusual User Behavior., Enhanced Endpoint Detection And Response (Edr) Solutions., Review Of Siem/Ndr Configurations To Improve Detection Of Encrypted Exfiltration., Employee Training On Recognizing Phishing/Malware Threats., , Password Reset For All Affected Accounts, Enhanced Personal Information Management Protocols, Planned Strengthening Of Collaboration Platform Security, , Password Resets For Affected Accounts., Voluntary Reporting To Regulatory Body (Transparency Measure)., Likely Review Of Remote Access And Byod (Bring Your Own Device) Policies., .
Additional Questions
Incident Details
What was the most recent incident detected ?
Most Recent Incident Detected: The most recent incident detected was on 2023-05-13.
What was the most recent incident publicly disclosed ?
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2023-10-17.
Impact of the Incidents
What was the most significant data compromised in an incident ?
Most Significant Data Compromised: The most significant data compromised in an incident were customer data, , Personal Information, Customer Names, , Names, Email addresses, , Full Names, Email Addresses, Slack Chat Histories (Internal Communications), , Names, Email addresses, Chat histories, , Names, Email Addresses, Slack Chat Histories, , names, email addresses, Slack chat histories (including potentially sensitive internal communications), , Names, Email Addresses, Chat Histories and .
What was the most significant system affected in an incident ?
Most Significant System Affected: The most significant system affected in an incident was Slack Workspace and Internal Slack communication system and Slack Workspace and Slack workspaceemployee device (initial infection point) and Slack Accounts.
Response to the Incidents
What containment measures were taken in the most recent incident ?
Containment Measures in Most Recent Incident: The containment measures taken in the most recent incident were Password Resets for Affected AccountsAccess ReviewsRevoking Compromised Credentials, Password Resets for Affected AccountsAccess Revocation for Compromised Credentials, password resets for affected accounts and Password Resets.
Data Breach Information
What was the most sensitive data compromised in a breach ?
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Chat Histories, Customer Names, Full Names, Slack Chat Histories (Internal Communications), customer data, Slack Chat Histories, Slack chat histories (including potentially sensitive internal communications), Personal Information, names, Names, Email Addresses, email addresses, Chat histories and Email addresses.
What was the number of records exposed in the most significant breach ?
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 86.9K.
Lessons Learned and Recommendations
What was the most significant lesson learned from past incidents ?
Most Significant Lesson Learned: The most significant lesson learned from past incidents was Voluntary disclosure can demonstrate transparency even when not legally required, Risks associated with allowing non-corporate devices to access confidential corporate data; importance of robust authentication and endpoint security for remote/work-from-home setups.
What was the most significant recommendation implemented to improve cybersecurity ?
Most Significant Recommendation Implemented: The most significant recommendation implemented to improve cybersecurity was Enhance endpoint detection and response (EDR) capabilities, Deploy endpoint detection and response (EDR) solutions to monitor and block malware infections on personal devices used for work., Monitor dark web for potential data leaks, Enforce stricter policies on the use of personal devices for accessing corporate systems., Implement Mandatory Multi-Factor Authentication (MFA) for all corporate accounts, including Slack., Implement multi-factor authentication (MFA) for all collaboration platforms, Implement multi-factor authentication (MFA) for Slack and other critical platforms., Segment corporate networks to limit lateral movement in case of credential compromise., Provide employee training on securing workplace chat systems, Enhance endpoint detection and response (EDR) capabilities to prevent malware infections., Expand SIEM rules to flag unusual data access patterns (e.g., bulk downloads of chat histories)., Conduct regular security awareness training to educate employees on phishing and malware risks., Enforce stricter policies on the use of personal devices for corporate access., Conduct regular security audits of third-party SaaS applications, Conduct regular red-team exercises to test detection capabilities for lateral movement and data exfiltration., Consider network segmentation for sensitive communication channels, Implement Multi-Factor Authentication (MFA) for all critical systems, including Slack., Conduct regular security awareness training for employees on phishing and malware risks., Enhance endpoint security to prevent malware infections that lead to credential theft., Deploy User and Entity Behavior Analytics (UEBA) to detect anomalous actions by authorized users., Evaluate Network Detection and Response (NDR) solutions capable of inspecting encrypted traffic metadata for anomalies. and Monitor and audit third-party/remote access to corporate systems..
References
What is the most recent source of information about an incident ?
Most Recent Source: The most recent source of information about an incident are Nikkei Inc. Official Statement, Hackread.com, The Register, Nikkei Official Statement, Reuters/Associated Press coverage of the incident, Nikkei Inc. Official Statement (via media reports), DeepTempo Research (Mayank Kumar, Founding AI Engineer), Proofpoint Research on Collaboration Platform Attacks and Nikkei official statement (via media reports).
What is the most recent URL for additional resources on cybersecurity best practices ?
Most Recent URL for Additional Resources: The most recent URL for additional resources on cybersecurity best practices is https://www.theregister.com/2023/XX/XX/nikkei_slack_breach/ .
Investigation Status
What is the current status of the most recent investigation ?
Current Status of Most Recent Investigation: The current status of the most recent investigation is Ongoing.
Stakeholder and Customer Advisories
What was the most recent stakeholder advisory issued ?
Most Recent Stakeholder Advisory: The most recent stakeholder advisory issued was Internal communication to employees about the breach and remediation steps., Internal Communication to Employees and Business Partners About the Breach and Mitigation Steps, Internal communications to employees and business partners, .
What was the most recent customer advisory issued ?
Most Recent Customer Advisory: The most recent customer advisory issued was an Public disclosure via statement; no direct customer advisories mentioned.
Initial Access Broker
What was the most recent entry point used by an initial access broker ?
Most Recent Entry Point: The most recent entry point used by an initial access broker were an Malware-infected personal computer of an employee, Employee’s Personal Computer (Malware Infection), Employee’s malware-infected computer and Email Accounts.
Post-Incident Analysis
What was the most significant root cause identified in post-incident analysis ?
Most Significant Root Cause: The most significant root cause identified in post-incident analysis was Malware infection on an employee’s personal computer leading to credential theft.Lack of MFA or sufficient access controls for Slack.Use of personal devices for corporate communication without adequate security measures., Malware infection on employee deviceCredential theft leading to Slack access, Inadequate endpoint protection leading to malware infection.Lack of MFA for Slack accounts, enabling credential stuffing.Insufficient behavioral monitoring to detect anomalous data access by authorized users.Encrypted traffic hindered payload inspection by NDR tools., Inadequate endpoint protection leading to malware infectionPotential lack of MFA on Slack accountsInsufficient monitoring of collaboration platform accessPossible over-reliance on perimeter security without internal controls, Use of personal (non-corporate) device for accessing corporate Slack accounts.Inadequate endpoint security leading to malware infection.Weak authentication mechanisms (credentials compromised)..
What was the most significant corrective action taken based on post-incident analysis ?
Most Significant Corrective Action: The most significant corrective action taken based on post-incident analysis was Password resets and access reviews for Slack accounts.Enhanced monitoring for anomalous logins.Commitment to reinforcing data protection measures to prevent recurrence., Strengthening personal information management, Mandatory MFA for all corporate accounts.Deployment of UEBA tools to detect unusual user behavior.Enhanced endpoint detection and response (EDR) solutions.Review of SIEM/NDR configurations to improve detection of encrypted exfiltration.Employee training on recognizing phishing/malware threats., Password reset for all affected accountsEnhanced personal information management protocolsPlanned strengthening of collaboration platform security, Password resets for affected accounts.Voluntary reporting to regulatory body (transparency measure).Likely review of remote access and BYOD (Bring Your Own Device) policies..
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Latest Global CVEs (Not Company-Specific)
Description
ThingsBoard in versions prior to v4.2.1 allows an authenticated user to upload malicious SVG images via the "Image Gallery", leading to a Stored Cross-Site Scripting (XSS) vulnerability. The exploit can be triggered when any user accesses the public API endpoint of the malicious SVG images, or if the malicious images are embedded in an `iframe` element, during a widget creation, deployed to any page of the platform (e.g., dashboards), and accessed during normal operations. The vulnerability resides in the `ImageController`, which fails to restrict the execution of JavaScript code when an image is loaded by the user's browser. This vulnerability can lead to the execution of malicious code in the context of other users' sessions, potentially compromising their accounts and allowing unauthorized actions.
Risk Information
cvss4
Base: 6.2
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description
Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email address used when switching authentication methods and sending a request to the /users/login/sso/code-exchange endpoint. The vulnerability requires ExperimentalEnableAuthenticationTransfer to be enabled (default: enabled) and RequireEmailVerification to be disabled (default: disabled).
Risk Information
cvss3
Base: 9.9
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
Description
Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to sanitize team email addresses to be visible only to Team Admins, which allows any authenticated user to view team email addresses via the GET /api/v4/channels/{channel_id}/common_teams endpoint
Risk Information
cvss3
Base: 4.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
Description
Exposure of email service credentials to users without administrative rights in Devolutions Server.This issue affects Devolutions Server: before 2025.2.21, before 2025.3.9.
Description
Exposure of credentials in unintended requests in Devolutions Server.This issue affects Server: through 2025.2.20, through 2025.3.8.
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