Company Details
transunion
16,441
516,751
5415
transunion.com
0
TRA_2672901
In-progress

TransUnion Company CyberSecurity Posture
transunion.comTransUnion is a global information and insights company that makes trust possible in the modern economy. We do this by providing an actionable picture of each person so they can be reliably represented in the marketplace. As a result, businesses and consumers can transact with confidence and achieve great things. This picture is grounded in our legacy as a credit reporting agency which enables us to tap into both credit and public record data; our data fusion methodology that helps us link, match and tap into the awesome combined power of that data; and our knowledgeable and passionate team, who stewards the information with expertise, and in accordance with local legislation around the world. A leading presence in more than 30 countries across five continents, TransUnion provides solutions that help create economic opportunity, great experiences and personal empowerment for hundreds of millions of people. We call this Information for Good® — it’s our purpose, and what drives us every day. Contact Us Customer support: https://transu.co/60024D64I Business support: https://transu.co/60044D67G
Company Details
transunion
16,441
516,751
5415
transunion.com
0
TRA_2672901
In-progress
Between 0 and 549

TransUnion Global Score (TPRM)XXXX

Description: On August 4, 2022, the California Office of the Attorney General reported a data breach by TransUnion LLC that involved attempts to access personal information from credit files. The breach occurred between August 4, 2021, and January 31, 2022, with the specific number of individuals affected and the types of compromised information remaining unknown.
Description: The Maine Office of the Attorney General reported a data breach at TransUnion LLC involving impersonation attempts. The incident affected 24 Maine residents and potentially impacted a total of 10,814 individuals. The suspicious activity occurred between January 1, 2021, and March 28, 2022. Notification letters were sent to affected individuals on August 4, 2022, and one year of complimentary credit monitoring services was offered.
Description: The California Office of the Attorney General reported a data breach involving TransUnion Risk and Alternative Data Solutions, Inc. (TRADS) on October 2, 2024. The breach occurred between February 8, 2024, and April 16, 2024, involving unauthorized access attempts to personal information, specifically names and certain impacted data elements, although the number of affected individuals is unknown.
Description: TransUnion LLC reported a data breach incident after information in the company’s possession was subject to unauthorized access. The breach compromised the names, Social Security numbers, financial account numbers and driver’s license numbers. TransUnion investigated the incident and sent out data breach letters to all affected parties.
Description: TransUnion, a major credit bureau, experienced a data breach on **July 28** via a compromised third-party application. While hackers did not access core credit reports, they obtained **Social Security numbers and birth dates** of **69,000 Wisconsin residents** and **4 million people nationwide**. The exposed data—critical for identity theft—poses long-term risks, including unauthorized credit applications, loans, or fraud. Victims like Howard Pope, a Waupaca resident, reported receiving breach notifications and proactively froze their credit, but uncertainty remains about when or how attackers might exploit the stolen information. Wisconsin’s consumer protection agency confirmed TransUnion has not disclosed the perpetrators or their motives. The breach underscores vulnerabilities in systems handling sensitive personal data, with officials urging affected individuals to monitor credit reports weekly (via **annualcreditreport.com**) and utilize free credit monitoring offered by TransUnion. The incident highlights systemic risks when even credit bureaus—tasked with safeguarding financial identities—fail to prevent exposures.
Description: TransUnion, a major U.S. consumer credit reporting agency, suffered a data breach on **July 28, 2025**, exposing the personal information of **over 4.4 million Americans**. The incident stemmed from unauthorized access to a **third-party application** linked to its U.S. consumer support operations. While TransUnion stated the breach involved only **limited personal data**—excluding core credit reports or financial details—the exact nature of the compromised information remains undisclosed. The company is offering **24 months of free credit monitoring and identity theft protection** to affected individuals. The breach follows a pattern of recent attacks targeting **Salesforce-linked systems**, though TransUnion has not confirmed a direct connection. This marks another security lapse for the firm, which previously faced breaches in its **South African and Canadian branches** involving customer data exposure.
Description: TransUnion, a major credit bureau, suffered a **data breach** exposing sensitive personal information of **4.4 million US consumers**. The compromised data includes **names, Social Security numbers (SSNs), and dates of birth**, though no credit information was accessed. The breach originated from unauthorized access to a **third-party application** supporting TransUnion’s US consumer operations. While the company claims the exposed data is limited, the leaked details (SSNs and DOBs) pose a **high risk of identity theft**. TransUnion is notifying affected individuals and offering support resources. Legal firms are already preparing class-action lawsuits. The incident highlights vulnerabilities in third-party vendor security, reinforcing the need for credit monitoring or freezes for impacted users.
Description: TransUnion, a major credit reporting agency, suffered a significant data breach linked to the extortion group **ShinyHunters**, who exploited vulnerabilities in Salesforce-hosted databases. The attack exposed **4.4–4.5 million customers’ sensitive personal information**, including **Social Security Numbers (SSNs)**, which heightens risks of **identity theft, financial fraud, and long-term misuse of personal data**. Unlike prior breaches involving less critical data, this incident involved highly sensitive identifiers, prompting TransUnion to offer **24 months of free credit monitoring and proactive fraud assistance** to affected individuals. The same group has allegedly targeted other high-profile entities like **Google, Allianz Life, Cisco, and Workday**, indicating a broader campaign. The breach underscores vulnerabilities in third-party hosted systems and the escalating sophistication of cybercriminal tactics targeting financial institutions.
Description: TransUnion, a major credit reporting firm, confirmed a significant data breach affecting **4,461,511 U.S. consumers** after attackers exploited vulnerabilities in a **third-party application** linked to its U.S. consumer support operations. The breach, discovered on **July 30, 2025** (occurring two days prior), exposed highly sensitive personal data, including **names, Social Security numbers, dates of birth, billing addresses, email addresses, phone numbers, customer transaction reasons (e.g., free credit report requests), and support tickets/messages**. While TransUnion claimed its **core credit database and credit reports remained uncompromised**, hackers allegedly stole **over 13 million records** in total, with ~4.4 million tied to U.S. individuals. The attack was attributed to the **extortion group ShinyHunters**, leveraging malicious third-party integrations or OAuth-connected apps disguised as legitimate Salesforce tools. TransUnion responded by offering **24 months of free credit monitoring and identity theft protection** to affected individuals and collaborating with law enforcement and cybersecurity experts for forensic analysis.
Description: The Maine Office of the Attorney General reported a data breach involving TransUnion LLC on November 7, 2022. From January 16, 2022, to July 15, 2022, unauthorized actors potentially accessed personal information of 213 individuals, including names, Social Security numbers, dates of birth, financial account numbers, and driver's license numbers. TransUnion offered one year of complimentary identity theft protection and credit monitoring services to affected individuals.
Description: The Vermont Office of the Attorney General reported on March 10, 2023, that TransUnion LLC experienced a data breach where unauthorized actors may have accessed personal information of consumers potentially between December 1, 2022, and January 13, 2023. Sixty-seven cases were identified, involving the bypass of verification measures, but the specific types of personal information affected are not detailed in the report.
Description: The Vermont Office of the Attorney General disclosed on **October 2, 2024**, that **TransUnion Risk and Alternative Data Solutions (TRADS)** suffered a data breach involving **unauthorized access to consumer personal data**. The incident occurred over an unspecified period, with the investigation launched on **July 24, 2024**, and concluding on **September 10, 2024**. While TRADS’s internal security systems were confirmed **not compromised**, the breach resulted in the exposure of consumer information, including **names and other unspecified personal data elements**. The exact scope of the exposed data remains undisclosed, but the incident highlights vulnerabilities in third-party data handling, raising concerns over potential misuse of sensitive consumer information. No evidence of financial fraud or large-scale identity theft has been reported thus far, but the exposure of personal identifiers poses risks of targeted phishing, identity theft, or reputational harm to affected individuals.
Description: TransUnion South Africa servers were attacked by N4ughtysecTU hacker group by using an authorised client’s credentials The attackers stole about 4TB of the personal data of 54 million customers of the company and threaten to release the data if ransom not paid.
Description: FBI hacker 'USDoD' reportedly released private information from consumer credit reporting company TransUnion. Highly sensitive data that was purportedly stolen from the credit reporting bureau was leaked, according to a threat actor going by the handle "USDoD." The disclosed database, which is over 3GB in size, contains private information about 58,505 individuals from all around the world, including America and Europe. The hacker allegedly possessed information on 1000 of Airbus suppliers. 3,200 people that were connected to Airbus vendors had their personal information stolen by threat actors; the information that was revealed included names, job titles, residences, email addresses, and phone numbers.


TransUnion has 792.86% more incidents than the average of same-industry companies with at least one recorded incident.
TransUnion has 669.23% more incidents than the average of all companies with at least one recorded incident.
TransUnion reported 5 incidents this year: 0 cyber attacks, 0 ransomware, 0 vulnerabilities, 5 data breaches, compared to industry peers with at least 1 incident.
TransUnion cyber incidents detection timeline including parent company and subsidiaries

TransUnion is a global information and insights company that makes trust possible in the modern economy. We do this by providing an actionable picture of each person so they can be reliably represented in the marketplace. As a result, businesses and consumers can transact with confidence and achieve great things. This picture is grounded in our legacy as a credit reporting agency which enables us to tap into both credit and public record data; our data fusion methodology that helps us link, match and tap into the awesome combined power of that data; and our knowledgeable and passionate team, who stewards the information with expertise, and in accordance with local legislation around the world. A leading presence in more than 30 countries across five continents, TransUnion provides solutions that help create economic opportunity, great experiences and personal empowerment for hundreds of millions of people. We call this Information for Good® — it’s our purpose, and what drives us every day. Contact Us Customer support: https://transu.co/60024D64I Business support: https://transu.co/60044D67G

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Filipino businesses lost an estimated P4 trillion to fraud over the past year, according to credit insights firm TransUnion.
Fraud is draining business resources at an alarming and unprecedented rate. According to TransUnion's (NYSE: TRU) newly released H2 2025...
Best Fraud Prevention Companies : 1. LexisNexis 2. Sift 3. Accertify 4. Arkose Labs 5. Experian 6. TransUnion TruValidate 7. BioCatch.
Narasimhan says from AI and cybersecurity to design and cloud platforms, the country's talent pool and leadership depth are redefining how...
Canadian commercial airline WestJet, headquartered in Calgary, Alberta, is providing notice to United States residents of a recen.
The letter, addressed to individuals using their full name and home address, informs recipients of a cyber incident involving a third-party...
A new class action lawsuit accuses TransUnion of failing to properly secure and safeguard the personally identifiable information and...
Post pandemic, financial fraud linked to synthetic identities is rising again, with firms potentially facing $3.3 billion in damages from...
TransUnion, a credit reporting firm, has announced a data breach affecting over 4.4 million U.S. consumers due to unauthorized access to a third-party...

Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
The official website of TransUnion is http://www.transunion.com.
According to Rankiteo, TransUnion’s AI-generated cybersecurity score is 188, reflecting their Critical security posture.
According to Rankiteo, TransUnion currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
According to Rankiteo, TransUnion is not certified under SOC 2 Type 1.
According to Rankiteo, TransUnion does not hold a SOC 2 Type 2 certification.
According to Rankiteo, TransUnion is not listed as GDPR compliant.
According to Rankiteo, TransUnion does not currently maintain PCI DSS compliance.
According to Rankiteo, TransUnion is not compliant with HIPAA regulations.
According to Rankiteo,TransUnion is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
TransUnion operates primarily in the IT Services and IT Consulting industry.
TransUnion employs approximately 16,441 people worldwide.
TransUnion presently has no subsidiaries across any sectors.
TransUnion’s official LinkedIn profile has approximately 516,751 followers.
TransUnion is classified under the NAICS code 5415, which corresponds to Computer Systems Design and Related Services.
Yes, TransUnion has an official profile on Crunchbase, which can be accessed here: https://www.crunchbase.com/organization/transunion.
Yes, TransUnion maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/transunion.
As of December 10, 2025, Rankiteo reports that TransUnion has experienced 14 cybersecurity incidents.
TransUnion has an estimated 37,379 peer or competitor companies worldwide.
Incident Types: The types of cybersecurity incidents that have occurred include Data Leak and Breach.
Detection and Response: The company detects and responds to cybersecurity incidents through an communication strategy with sent out data breach letters to all affected parties, and communication strategy with notification letters sent to affected individuals, and enhanced monitoring with one year of complimentary credit monitoring services offered, and communication strategy with offered one year of complimentary identity theft protection and credit monitoring services to affected individuals, and incident response plan activated with yes (investigation initiated), and communication strategy with public disclosure via vermont attorney general, and and remediation measures with offering 24 months of free credit monitoring and identity theft protection, and communication strategy with data breach notifications to affected individuals, communication strategy with public disclosure via maine ag filing, and incident response plan activated with yes (notification letters sent to affected individuals), and communication strategy with direct notification letters to affected individuals; public disclosure via state filings and media (e.g., cnet), and incident response plan activated with yes, and third party assistance with engaged third-party cybersecurity experts for independent forensics review, and law enforcement notified with yes, and containment measures with quick containment within hours of discovery, containment measures with isolation of affected third-party application, and remediation measures with forensic investigation, remediation measures with customer notifications, and recovery measures with 24 months of free credit monitoring and identity theft protection for affected individuals, and communication strategy with public disclosure via maine attorney general's office filing, communication strategy with media statements, communication strategy with direct notifications to affected consumers, and incident response plan activated with yes (proactive fraud assistance and credit monitoring offered), and remediation measures with free credit monitoring for 24 months, remediation measures with proactive fraud assistance, and communication strategy with public advisories, communication strategy with customer notifications, and incident response plan activated with yes (letters sent to affected individuals), and remediation measures with free credit monitoring offered to victims, and communication strategy with direct mail notifications, communication strategy with public advisories via wisconsin datcp..
Title: TransUnion South Africa Data Breach
Description: TransUnion South Africa servers were attacked by N4ughtysecTU hacker group by using an authorized client’s credentials. The attackers stole about 4TB of the personal data of 54 million customers of the company and threatened to release the data if a ransom was not paid.
Type: Data Breach
Attack Vector: Unauthorized access using authorized client's credentials
Vulnerability Exploited: Compromised credentials
Threat Actor: N4ughtysecTU
Motivation: Financial gain (ransom)
Title: TransUnion LLC Data Breach
Description: TransUnion LLC reported a data breach incident after information in the company’s possession was subject to unauthorized access. The breach compromised the names, Social Security numbers, financial account numbers and driver’s license numbers. TransUnion investigated the incident and sent out data breach letters to all affected parties.
Type: Data Breach
Title: USDoD Hacker Releases Private Information from TransUnion
Description: FBI hacker 'USDoD' reportedly released private information from consumer credit reporting company TransUnion. Highly sensitive data that was purportedly stolen from the credit reporting bureau was leaked, according to a threat actor going by the handle 'USDoD.' The disclosed database, which is over 3GB in size, contains private information about 58,505 individuals from all around the world, including America and Europe. The hacker allegedly possessed information on 1000 of Airbus suppliers. 3,200 people that were connected to Airbus vendors had their personal information stolen by threat actors; the information that was revealed included names, job titles, residences, email addresses, and phone numbers.
Type: Data Breach
Attack Vector: Unknown
Threat Actor: USDoD
Motivation: Unknown
Title: TransUnion LLC Data Breach
Description: The Maine Office of the Attorney General reported that TransUnion LLC experienced a data breach involving impersonation attempts, affecting 24 Maine residents. The suspicious activity occurred between January 1, 2021, and March 28, 2022, with a total of 10,814 individuals potentially impacted. Notification letters were sent to affected individuals on August 4, 2022, and one year of complimentary credit monitoring services was offered.
Date Publicly Disclosed: 2022-08-04
Type: Data Breach
Attack Vector: Impersonation
Title: TransUnion LLC Data Breach
Description: The California Office of the Attorney General reported a data breach by TransUnion LLC that involved attempts to access personal information from credit files.
Date Detected: 2022-08-04
Date Publicly Disclosed: 2022-08-04
Type: Data Breach
Title: Data Breach at TransUnion Risk and Alternative Data Solutions, Inc. (TRADS)
Description: The California Office of the Attorney General reported a data breach involving TransUnion Risk and Alternative Data Solutions, Inc. (TRADS) on October 2, 2024. The breach occurred between February 8, 2024, and April 16, 2024, involving unauthorized access attempts to personal information, specifically names and certain impacted data elements, although the number of affected individuals is unknown.
Date Detected: 2024-10-02
Date Publicly Disclosed: 2024-10-02
Type: Data Breach
Attack Vector: Unauthorized Access
Title: TransUnion LLC Data Breach
Description: The Maine Office of the Attorney General reported a data breach involving TransUnion LLC on November 7, 2022. From January 16, 2022, to July 15, 2022, unauthorized actors potentially accessed personal information of 213 individuals, including names, Social Security numbers, dates of birth, financial account numbers, and driver's license numbers. TransUnion offered one year of complimentary identity theft protection and credit monitoring services to affected individuals.
Date Detected: 2022-07-15
Date Publicly Disclosed: 2022-11-07
Type: Data Breach
Threat Actor: Unauthorized actors
Title: TransUnion LLC Data Breach
Description: Unauthorized actors may have accessed personal information of consumers potentially between December 1, 2022, and January 13, 2023. Sixty-seven cases were identified, involving the bypass of verification measures.
Date Detected: 2023-03-10
Date Publicly Disclosed: 2023-03-10
Type: Data Breach
Attack Vector: Bypass of verification measures
Threat Actor: Unauthorized actors
Title: TransUnion Data Breach Exposes Personal Information of 4.4 Million U.S. Consumers
Description: Consumer credit reporting giant TransUnion suffered a data breach exposing the personal information of over 4.4 million people in the United States. The breach occurred on July 28, 2025, and was discovered two days later. It involved a third-party application serving the company's U.S. consumer support operations. The exposed data was described as 'limited personal information,' though specifics were not disclosed. No credit reports or core credit information were compromised. TransUnion is offering 24 months of free credit monitoring and identity theft protection to affected individuals. The incident may be linked to a wave of Salesforce data theft attacks conducted by groups like Shiny Hunters and UNC6395.
Date Detected: 2025-07-30
Type: Data Breach
Attack Vector: Third-Party Application Vulnerability
Threat Actor: Shiny Hunters (suspected)UNC6395 (suspected)
Motivation: Data TheftExtortion (suspected)
Title: TransUnion Data Breach Exposes Sensitive Personal Information of 4.4 Million US Consumers
Description: Credit bureau TransUnion confirmed a significant data breach exposing personal data (names, Social Security Numbers, dates of birth) of ~4.4 million US consumers. The breach involved unauthorized access to a third-party application serving US consumer support operations. While no credit information was accessed, the exposed details pose an identity theft risk. Affected individuals are being notified via letter, and a class-action lawsuit is being prepared.
Type: Data Breach
Attack Vector: Third-party application vulnerability
Title: TransUnion Data Breach via Third-Party Salesforce Integration
Description: TransUnion confirmed a major cyber incident affecting over 4.4 million U.S. consumers. Attackers exploited weaknesses in a third-party application used in TransUnion's U.S. consumer support operations, linked to a broader wave of Salesforce-related attacks. The breach exposed highly sensitive personal data, including names, Social Security numbers, dates of birth, and customer support records. The extortion group ShinyHunters and its affiliates are suspected of involvement. TransUnion is offering 24 months of free credit monitoring and identity theft protection to affected individuals.
Date Detected: 2025-07-30
Date Publicly Disclosed: 2025-07-30
Type: Data Breach
Attack Vector: Third-Party Application ExploitationOAuth AbuseMalicious Integrations
Vulnerability Exploited: Weaknesses in third-party integrations with Salesforce-connected applications (not Salesforce itself)
Threat Actor: ShinyHuntersScattered Spider (suspected overlap)UNC6395UNC6040
Motivation: Data TheftExtortionFinancial GainData Exfiltration for Underground Sales
Title: TransUnion Data Breach Impacting Over 4.4 Million People
Description: A cyberattack linked to the extortion group ShinyHunters exposed sensitive personal information, including Social Security Numbers (SSNs), of over 4.4 million TransUnion customers. The breach poses significant risks for identity theft, financial fraud, and long-term misuse of personal data. TransUnion is offering proactive fraud assistance and 24 months of free credit monitoring to affected individuals.
Type: Data Breach
Vulnerability Exploited: Vulnerabilities in Salesforce-hosted databases
Threat Actor: ShinyHunters
Motivation: Financial GainData TheftExtortion
Title: TransUnion Data Breach Affecting 4 Million Individuals
Description: TransUnion, one of the three major credit bureaus, experienced a data breach on July 28 involving a third-party application. While hackers did not access credit reports or core credit information, they obtained Social Security numbers and birth dates of 69,000 individuals in Wisconsin and 4 million people nationwide. The breach raises concerns about potential identity theft and financial fraud, as the exposed data (SSNs and birth dates) are critical for identity verification. TransUnion is offering free credit monitoring to affected individuals, and authorities advise freezing credit reports and monitoring accounts for suspicious activity.
Date Detected: 2024-07-28
Type: Data Breach
Attack Vector: Third-party application vulnerability
Motivation: Likely financial gain (identity theft/fraud)
Common Attack Types: The most common types of attacks the company has faced is Breach.
Identification of Attack Vectors: The company identifies the attack vectors used in incidents through Authorized client’s credentials, Third-Party Application (Consumer Support Operations) and Third-party application integrated with Salesforce (disguised as legitimate tool).

Data Compromised: 4TB of personal data

Data Compromised: Names, Social security numbers, Financial account numbers, Driver’s license numbers

Data Compromised: Names, Job titles, Residences, Email addresses, Phone numbers

Data Compromised: Personally Identifiable Information

Data Compromised: Personal information from credit files

Data Compromised: Names, Certain impacted data elements

Data Compromised: Names, Social security numbers, Dates of birth, Financial account numbers, Driver's license numbers
Identity Theft Risk: High
Payment Information Risk: High

Data Compromised: Personal information of consumers

Data Compromised: Limited personal information
Systems Affected: Third-Party Application (Consumer Support Operations)
Brand Reputation Impact: Potential Reputation Damage (Historical Breaches in South Africa and Canada)
Identity Theft Risk: High (4.4 Million Individuals Affected)

Data Compromised: Name, Social security number, Date of birth
Systems Affected: Third-party application (US consumer support operations)
Brand Reputation Impact: Potential damage due to exposure of sensitive personal data and class-action lawsuit
Legal Liabilities: Class-action lawsuit in preparation
Identity Theft Risk: High (due to exposure of SSNs and DOBs)

Data Compromised: Names, Dates of birth, Social security numbers (ssns), Billing addresses, Email addresses, Phone numbers, Reasons for customer transactions (e.g., free credit report requests), Customer support tickets and messages
Systems Affected: Third-party application used in U.S. consumer support operations
Operational Impact: Disruption to consumer support operationsForensic investigationCustomer notifications
Brand Reputation Impact: Potential loss of trust in credit reporting securityMedia scrutinyConsumer backlash
Legal Liabilities: Potential regulatory finesClass-action lawsuits (risk)
Identity Theft Risk: High (due to exposure of SSNs, dates of birth, and other PII)

Data Compromised: Social security numbers (ssns), Sensitive personal information
Systems Affected: Salesforce-hosted databases
Brand Reputation Impact: High (due to exposure of SSNs and potential for identity theft)
Identity Theft Risk: High

Data Compromised: Social security numbers, Birth dates
Systems Affected: Third-party application
Brand Reputation Impact: Moderate (public distrust in credit bureau security)
Identity Theft Risk: High (SSNs and birth dates exposed)
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Personal data, Names, Social Security Numbers, Financial Account Numbers, Driver’S License Numbers, , Names, Job Titles, Residences, Email Addresses, Phone Numbers, , Personally Identifiable Information, Personal Information From Credit Files, , Names, Certain Impacted Data Elements, , Names, Social Security Numbers, Dates Of Birth, Financial Account Numbers, Driver'S License Numbers, , Personal information, Personal Data (Names), Unspecified Data Elements, , Personal Information (Limited, Undisclosed Specifics), , Personally Identifiable Information (Pii), , Personally Identifiable Information (Pii), Customer Support Records, Transaction Histories, , Social Security Numbers (Ssns), Personal Information, , Personally Identifiable Information (Pii) and .

Entity Name: TransUnion South Africa
Entity Type: Company
Industry: Credit Reporting
Location: South Africa
Customers Affected: 54 million

Entity Name: TransUnion LLC
Entity Type: Company
Industry: Financial Services

Entity Name: TransUnion
Entity Type: Company
Industry: Consumer Credit Reporting
Location: Global
Customers Affected: 58505

Entity Name: Airbus
Entity Type: Company
Industry: Aerospace
Location: Global
Customers Affected: 3200

Entity Name: TransUnion LLC
Entity Type: Company
Industry: Credit Reporting
Customers Affected: 10814

Entity Name: TransUnion LLC
Entity Type: Company
Industry: Credit Reporting

Entity Name: TransUnion Risk and Alternative Data Solutions, Inc. (TRADS)
Entity Type: Company
Industry: Data Solutions

Entity Name: TransUnion LLC
Entity Type: Company
Industry: Credit Reporting
Customers Affected: 213

Entity Name: TransUnion LLC
Entity Type: Company
Industry: Credit Reporting
Customers Affected: 67 cases identified

Entity Name: TransUnion
Entity Type: Corporation
Industry: Consumer Credit Reporting
Location: United States (Global Operations in 30 Countries)
Size: 13,000 Employees, $3 Billion Annual Revenue
Customers Affected: 4.4 Million (U.S. Consumers)

Entity Name: TransUnion
Entity Type: Credit Bureau
Industry: Financial Services / Consumer Credit Reporting
Location: United States
Customers Affected: 4.4 million US consumers

Entity Name: TransUnion
Entity Type: Credit Reporting Agency
Industry: Financial Services
Location: United States
Size: Large (Global)
Customers Affected: 4,461,511 (U.S. consumers)

Entity Name: TransUnion
Entity Type: Credit Reporting Agency
Industry: Financial Services
Customers Affected: 4.4 million

Entity Name: TransUnion
Entity Type: Credit Bureau
Industry: Financial Services
Location: Global (HQ in Chicago, IL, USA)
Size: Large (publicly traded, Fortune 500)
Customers Affected: 4,000,000 (including 69,000 in Wisconsin)

Communication Strategy: Sent out data breach letters to all affected parties

Communication Strategy: Notification letters sent to affected individuals
Enhanced Monitoring: One year of complimentary credit monitoring services offered

Communication Strategy: Offered one year of complimentary identity theft protection and credit monitoring services to affected individuals

Incident Response Plan Activated: True
Remediation Measures: Offering 24 Months of Free Credit Monitoring and Identity Theft Protection
Communication Strategy: Data Breach Notifications to Affected IndividualsPublic Disclosure via Maine AG Filing

Incident Response Plan Activated: Yes (notification letters sent to affected individuals)
Communication Strategy: Direct notification letters to affected individuals; public disclosure via state filings and media (e.g., CNET)

Incident Response Plan Activated: Yes
Third Party Assistance: Engaged Third-Party Cybersecurity Experts For Independent Forensics Review.
Law Enforcement Notified: Yes
Containment Measures: Quick containment within hours of discoveryIsolation of affected third-party application
Remediation Measures: Forensic investigationCustomer notifications
Recovery Measures: 24 months of free credit monitoring and identity theft protection for affected individuals
Communication Strategy: Public disclosure via Maine Attorney General's Office filingMedia statementsDirect notifications to affected consumers

Incident Response Plan Activated: Yes (proactive fraud assistance and credit monitoring offered)
Remediation Measures: Free credit monitoring for 24 monthsProactive fraud assistance
Communication Strategy: Public advisoriesCustomer notifications

Incident Response Plan Activated: Yes (letters sent to affected individuals)
Remediation Measures: Free credit monitoring offered to victims
Communication Strategy: Direct mail notificationsPublic advisories via Wisconsin DATCP
Incident Response Plan: The company's incident response plan is described as Yes (investigation initiated), , Yes (notification letters sent to affected individuals), Yes, Yes (proactive fraud assistance and credit monitoring offered), Yes (letters sent to affected individuals).
Third-Party Assistance: The company involves third-party assistance in incident response through Engaged third-party cybersecurity experts for independent forensics review, .

Type of Data Compromised: Personal data
Number of Records Exposed: 54 million
Data Exfiltration: Yes

Type of Data Compromised: Names, Social security numbers, Financial account numbers, Driver’s license numbers
Sensitivity of Data: High
Personally Identifiable Information: namesSocial Security numbersdriver’s license numbers

Type of Data Compromised: Names, Job titles, Residences, Email addresses, Phone numbers
Number of Records Exposed: 58505
Sensitivity of Data: High

Type of Data Compromised: Personally Identifiable Information
Number of Records Exposed: 10814

Type of Data Compromised: Personal information from credit files

Type of Data Compromised: Names, Certain impacted data elements
Personally Identifiable Information: Names

Type of Data Compromised: Names, Social security numbers, Dates of birth, Financial account numbers, Driver's license numbers
Number of Records Exposed: 213
Sensitivity of Data: High

Type of Data Compromised: Personal information
Number of Records Exposed: 67

Type of Data Compromised: Personal information (limited, undisclosed specifics)
Number of Records Exposed: 4,400,000
Sensitivity of Data: Moderate (No Credit Reports or Core Credit Information Exposed)

Type of Data Compromised: Personally identifiable information (pii)
Number of Records Exposed: 4.4 million
Sensitivity of Data: High (SSNs and DOBs)
Data Exfiltration: Yes
Personally Identifiable Information: NameSocial Security NumberDate of Birth

Type of Data Compromised: Personally identifiable information (pii), Customer support records, Transaction histories
Number of Records Exposed: 13,000,000 (total claimed by hackers); 4,461,511 (U.S. consumers confirmed by TransUnion)
Sensitivity of Data: High (includes SSNs, dates of birth, and other sensitive identifiers)
Data Exfiltration: Yes
Personally Identifiable Information: NamesSocial Security Numbers (SSNs)Dates of BirthBilling AddressesEmail AddressesPhone Numbers

Type of Data Compromised: Social security numbers (ssns), Personal information
Number of Records Exposed: 4.4 million
Sensitivity of Data: High (SSNs and sensitive personal information)
Data Exfiltration: Yes
Personally Identifiable Information: Yes

Type of Data Compromised: Personally identifiable information (pii)
Number of Records Exposed: 4,000,000 (69,000 in Wisconsin)
Sensitivity of Data: High (SSNs and birth dates are immutable identifiers)
Data Exfiltration: Yes
Personally Identifiable Information: Social Security numbersbirth dates
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Offering 24 Months of Free Credit Monitoring and Identity Theft Protection, , Forensic investigation, Customer notifications, , Free credit monitoring for 24 months, Proactive fraud assistance, , Free credit monitoring offered to victims, .
Handling of PII Incidents: The company handles incidents involving personally identifiable information (PII) through by quick containment within hours of discovery, isolation of affected third-party application and .

Data Exfiltration: True

Data Exfiltration: Yes (but not ransomware-specific)

Data Exfiltration: Yes
Data Recovery from Ransomware: The company recovers data encrypted by ransomware through 24 months of free credit monitoring and identity theft protection for affected individuals, .

Regulatory Notifications: Filing to Office of the Maine Attorney General

Legal Actions: Class-action lawsuit in preparation
Regulatory Notifications: Mandatory state filings submitted

Regulatory Notifications: Filing with Maine Attorney General's Office

Regulatory Notifications: Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP)
Ensuring Regulatory Compliance: The company ensures compliance with regulatory requirements through Class-action lawsuit in preparation.

Lessons Learned: Third-party integrations with Salesforce applications are high-risk targets for attackers., OAuth-connected apps can bypass traditional login protections, enabling persistent access., Rapid containment is critical, but public disclosure timelines may lag for forensic completeness., Credit monitoring services are essential for mitigating post-breach identity theft risks.

Lessons Learned: Even major financial institutions are vulnerable to data breaches. Proactive measures such as credit freezes, fraud alerts, and regular credit monitoring are critical for mitigating risks associated with identity theft and financial fraud.

Recommendations: Consumers advised to freeze credit if not actively applying for credit.

Recommendations: Strengthen third-party vendor security assessments, especially for Salesforce-connected applications., Implement stricter OAuth and API access controls., Monitor dark web forums for stolen data sales., Enhance consumer education on phishing risks post-breach., Consider proactive credit freezes for affected individuals., Evaluate legal accountability for credit bureaus in mass exposure incidents.Strengthen third-party vendor security assessments, especially for Salesforce-connected applications., Implement stricter OAuth and API access controls., Monitor dark web forums for stolen data sales., Enhance consumer education on phishing risks post-breach., Consider proactive credit freezes for affected individuals., Evaluate legal accountability for credit bureaus in mass exposure incidents.Strengthen third-party vendor security assessments, especially for Salesforce-connected applications., Implement stricter OAuth and API access controls., Monitor dark web forums for stolen data sales., Enhance consumer education on phishing risks post-breach., Consider proactive credit freezes for affected individuals., Evaluate legal accountability for credit bureaus in mass exposure incidents.Strengthen third-party vendor security assessments, especially for Salesforce-connected applications., Implement stricter OAuth and API access controls., Monitor dark web forums for stolen data sales., Enhance consumer education on phishing risks post-breach., Consider proactive credit freezes for affected individuals., Evaluate legal accountability for credit bureaus in mass exposure incidents.Strengthen third-party vendor security assessments, especially for Salesforce-connected applications., Implement stricter OAuth and API access controls., Monitor dark web forums for stolen data sales., Enhance consumer education on phishing risks post-breach., Consider proactive credit freezes for affected individuals., Evaluate legal accountability for credit bureaus in mass exposure incidents.Strengthen third-party vendor security assessments, especially for Salesforce-connected applications., Implement stricter OAuth and API access controls., Monitor dark web forums for stolen data sales., Enhance consumer education on phishing risks post-breach., Consider proactive credit freezes for affected individuals., Evaluate legal accountability for credit bureaus in mass exposure incidents.

Recommendations: Confirm the legitimacy of breach notifications before taking action., Freeze credit or place a fraud alert to prevent unauthorized account openings., Monitor credit reports regularly for suspicious activity., Report identity theft to the Federal Trade Commission (IdentityTheft.gov) and IRS if SSNs are misused., Leverage free credit monitoring services offered by affected institutions.Confirm the legitimacy of breach notifications before taking action., Freeze credit or place a fraud alert to prevent unauthorized account openings., Monitor credit reports regularly for suspicious activity., Report identity theft to the Federal Trade Commission (IdentityTheft.gov) and IRS if SSNs are misused., Leverage free credit monitoring services offered by affected institutions.Confirm the legitimacy of breach notifications before taking action., Freeze credit or place a fraud alert to prevent unauthorized account openings., Monitor credit reports regularly for suspicious activity., Report identity theft to the Federal Trade Commission (IdentityTheft.gov) and IRS if SSNs are misused., Leverage free credit monitoring services offered by affected institutions.Confirm the legitimacy of breach notifications before taking action., Freeze credit or place a fraud alert to prevent unauthorized account openings., Monitor credit reports regularly for suspicious activity., Report identity theft to the Federal Trade Commission (IdentityTheft.gov) and IRS if SSNs are misused., Leverage free credit monitoring services offered by affected institutions.Confirm the legitimacy of breach notifications before taking action., Freeze credit or place a fraud alert to prevent unauthorized account openings., Monitor credit reports regularly for suspicious activity., Report identity theft to the Federal Trade Commission (IdentityTheft.gov) and IRS if SSNs are misused., Leverage free credit monitoring services offered by affected institutions.

Recommendations: Freeze credit reports with all three major bureaus (TransUnion, Equifax, Experian), Monitor credit reports weekly via annualcreditreport.com, Change TransUnion account passwords/PINs if applicable, Enroll in free credit monitoring offered by TransUnion, Remain vigilant for signs of identity theft (e.g., unauthorized accounts, loans, or credit inquiries)Freeze credit reports with all three major bureaus (TransUnion, Equifax, Experian), Monitor credit reports weekly via annualcreditreport.com, Change TransUnion account passwords/PINs if applicable, Enroll in free credit monitoring offered by TransUnion, Remain vigilant for signs of identity theft (e.g., unauthorized accounts, loans, or credit inquiries)Freeze credit reports with all three major bureaus (TransUnion, Equifax, Experian), Monitor credit reports weekly via annualcreditreport.com, Change TransUnion account passwords/PINs if applicable, Enroll in free credit monitoring offered by TransUnion, Remain vigilant for signs of identity theft (e.g., unauthorized accounts, loans, or credit inquiries)Freeze credit reports with all three major bureaus (TransUnion, Equifax, Experian), Monitor credit reports weekly via annualcreditreport.com, Change TransUnion account passwords/PINs if applicable, Enroll in free credit monitoring offered by TransUnion, Remain vigilant for signs of identity theft (e.g., unauthorized accounts, loans, or credit inquiries)Freeze credit reports with all three major bureaus (TransUnion, Equifax, Experian), Monitor credit reports weekly via annualcreditreport.com, Change TransUnion account passwords/PINs if applicable, Enroll in free credit monitoring offered by TransUnion, Remain vigilant for signs of identity theft (e.g., unauthorized accounts, loans, or credit inquiries)
Key Lessons Learned: The key lessons learned from past incidents are Third-party integrations with Salesforce applications are high-risk targets for attackers.,OAuth-connected apps can bypass traditional login protections, enabling persistent access.,Rapid containment is critical, but public disclosure timelines may lag for forensic completeness.,Credit monitoring services are essential for mitigating post-breach identity theft risks.Even major financial institutions are vulnerable to data breaches. Proactive measures such as credit freezes, fraud alerts, and regular credit monitoring are critical for mitigating risks associated with identity theft and financial fraud.
Implemented Recommendations: The company has implemented the following recommendations to improve cybersecurity: Consumers advised to freeze credit if not actively applying for credit..

Source: Maine Office of the Attorney General

Source: California Office of the Attorney General
Date Accessed: 2022-08-04

Source: California Office of the Attorney General
Date Accessed: 2024-10-02

Source: Maine Office of the Attorney General
Date Accessed: 2022-11-07

Source: Vermont Office of the Attorney General
Date Accessed: 2023-03-10

Source: BleepingComputer

Source: TransUnion Data Breach Notice (Sample)

Source: Office of the Maine Attorney General Filing

Source: CNET

Source: TransUnion state filings

Source: Fox News (CyberGuy Report)
URL: https://www.foxnews.com/tech/transunion-data-breach-what-you-need-to-know
Date Accessed: 2025-08-01

Source: Maine Attorney General's Office Filing
Date Accessed: 2025-07-30

Source: CyberGuy.com - TransUnion Breach Coverage
URL: https://www.cyberguy.com/transunion-data-breach/
Date Accessed: 2025-08-01

Source: TechCrunch

Source: BleepingComputer

Source: ITPro

Source: Moneywise (article)

Source: WBAY (ABC Affiliate, Green Bay, WI)
URL: https://www.wbay.com
Date Accessed: 2025-01-01

Source: Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP)
URL: https://datcp.wi.gov
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Maine Office of the Attorney General, and Source: California Office of the Attorney GeneralDate Accessed: 2022-08-04, and Source: California Office of the Attorney GeneralDate Accessed: 2024-10-02, and Source: Maine Office of the Attorney GeneralDate Accessed: 2022-11-07, and Source: Vermont Office of the Attorney GeneralDate Accessed: 2023-03-10, and Source: Vermont Office of the Attorney GeneralDate Accessed: 2024-10-02, and Source: BleepingComputer, and Source: TransUnion Data Breach Notice (Sample), and Source: Office of the Maine Attorney General Filing, and Source: CNET, and Source: TransUnion state filings, and Source: Fox News (CyberGuy Report)Url: https://www.foxnews.com/tech/transunion-data-breach-what-you-need-to-knowDate Accessed: 2025-08-01, and Source: Maine Attorney General's Office FilingDate Accessed: 2025-07-30, and Source: CyberGuy.com - TransUnion Breach CoverageUrl: https://www.cyberguy.com/transunion-data-breach/Date Accessed: 2025-08-01, and Source: TechCrunch, and Source: BleepingComputerUrl: https://www.bleepingcomputer.com/news/security/transunion-suffers-data-breach-impacting-over-44-million-people/, and Source: ITPro, and Source: Moneywise (article), and Source: WBAY (ABC Affiliate, Green Bay, WI)Url: https://www.wbay.comDate Accessed: 2025-01-01, and Source: Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP)Url: https://datcp.wi.gov.

Investigation Status: Investigated

Investigation Status: Ongoing (Potential Link to Salesforce Attacks Under Investigation)

Investigation Status: Ongoing (third-party forensic review in progress, law enforcement involved)

Investigation Status: Ongoing (as of latest reports)

Investigation Status: Ongoing (limited details disclosed by TransUnion)
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through Sent out data breach letters to all affected parties, Notification letters sent to affected individuals, Offered one year of complimentary identity theft protection and credit monitoring services to affected individuals, Public disclosure via Vermont Attorney General, Data Breach Notifications To Affected Individuals, Public Disclosure Via Maine Ag Filing, Direct notification letters to affected individuals; public disclosure via state filings and media (e.g., CNET), Public Disclosure Via Maine Attorney General'S Office Filing, Media Statements, Direct Notifications To Affected Consumers, Public Advisories, Customer Notifications, Direct Mail Notifications and Public Advisories Via Wisconsin Datcp.

Customer Advisories: Sent out data breach letters to all affected parties

Customer Advisories: 24 Months of Free Credit Monitoring and Identity Theft Protection Offered

Customer Advisories: Notification letters sent to affected individuals with details about the incident and resources for assistance.

Stakeholder Advisories: Affected Consumers Will Receive Direct Notifications With Details On Credit Monitoring Services., Transunion Emphasizes That Core Credit Databases And Credit Reports Were Not Compromised..
Customer Advisories: Delete old online accounts to reduce exposed data.Avoid phishing scams; verify requests via official channels.Use strong, unique passwords and a password manager.Enable two-factor authentication (2FA) on critical accounts.Keep devices and software updated.Freeze credit with all three major bureaus (TransUnion, Equifax, Experian).Monitor financial accounts and credit reports regularly.Consider identity theft protection services (24 months provided free to affected individuals).

Stakeholder Advisories: TransUnion is offering proactive fraud assistance and 24 months of free credit monitoring to affected individuals.
Customer Advisories: Confirm breach legitimacy before acting on notifications.Freeze credit or place fraud alerts.Monitor credit reports weekly for unauthorized activity.Report identity theft to FTC and IRS if SSN is compromised.

Stakeholder Advisories: Wisconsin Consumer Protection Officials Advise Credit Freezes And Monitoring., Transunion Recommends Password/Pin Changes For Account Holders..
Customer Advisories: Letters sent to affected individuals offering free credit monitoring.Public notifications via Wisconsin DATCP data breach page.
Advisories Provided: The company provides the following advisories to stakeholders and customers following an incident: were Sent out data breach letters to all affected parties, 24 Months Of Free Credit Monitoring And Identity Theft Protection Offered, , Notification letters sent to affected individuals with details about the incident and resources for assistance., Affected Consumers Will Receive Direct Notifications With Details On Credit Monitoring Services., Transunion Emphasizes That Core Credit Databases And Credit Reports Were Not Compromised., Delete Old Online Accounts To Reduce Exposed Data., Avoid Phishing Scams; Verify Requests Via Official Channels., Use Strong, Unique Passwords And A Password Manager., Enable Two-Factor Authentication (2Fa) On Critical Accounts., Keep Devices And Software Updated., Freeze Credit With All Three Major Bureaus (Transunion, Equifax, Experian)., Monitor Financial Accounts And Credit Reports Regularly., Consider Identity Theft Protection Services (24 Months Provided Free To Affected Individuals)., , TransUnion is offering proactive fraud assistance and 24 months of free credit monitoring to affected individuals., Confirm Breach Legitimacy Before Acting On Notifications., Freeze Credit Or Place Fraud Alerts., Monitor Credit Reports Weekly For Unauthorized Activity., Report Identity Theft To Ftc And Irs If Ssn Is Compromised., , Wisconsin Consumer Protection Officials Advise Credit Freezes And Monitoring., Transunion Recommends Password/Pin Changes For Account Holders., Letters Sent To Affected Individuals Offering Free Credit Monitoring., Public Notifications Via Wisconsin Datcp Data Breach Page. and .

Entry Point: Authorized client’s credentials

Entry Point: Third-Party Application (Consumer Support Operations),

Entry Point: Third-party application integrated with Salesforce (disguised as legitimate tool)
High Value Targets: Customer Relationship Management (Crm) Data, Pii-Rich Support Records,
Data Sold on Dark Web: Customer Relationship Management (Crm) Data, Pii-Rich Support Records,

High Value Targets: Salesforce-Hosted Databases,
Data Sold on Dark Web: Salesforce-Hosted Databases,

Root Causes: Unauthorized access to a third-party application serving US consumer support operations.

Root Causes: Insecure Third-Party Integrations With Salesforce Applications., Inadequate Oversight Of Oauth-Connected Apps., Lack Of Segmentation Between Consumer Support Systems And Core Credit Databases (Though Core Systems Were Not Breached).,
Corrective Actions: Engaged Third-Party Cybersecurity Experts For Forensic Review., Providing 24 Months Of Credit Monitoring To Affected Individuals., Collaborating With Law Enforcement For Attribution And Mitigation.,

Root Causes: Exploitation Of Vulnerabilities In Salesforce-Hosted Databases By Shinyhunters,
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as One year of complimentary credit monitoring services offered, Engaged Third-Party Cybersecurity Experts For Independent Forensics Review, .
Corrective Actions Taken: The company has taken the following corrective actions based on post-incident analysis: Engaged Third-Party Cybersecurity Experts For Forensic Review., Providing 24 Months Of Credit Monitoring To Affected Individuals., Collaborating With Law Enforcement For Attribution And Mitigation., .
Last Ransom Demanded: The amount of the last ransom demanded was Yes.
Last Attacking Group: The attacking group in the last incident were an N4ughtysecTU, USDoD, Unauthorized actors, Unauthorized actors, Shiny Hunters (suspected)UNC6395 (suspected), ShinyHuntersScattered Spider (suspected overlap)UNC6395UNC6040 and ShinyHunters.
Most Recent Incident Detected: The most recent incident detected was on 2022-08-04.
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2025-07-30.
Most Recent Incident Resolved: The most recent incident resolved was on 2024-09-10.
Most Significant Data Compromised: The most significant data compromised in an incident were 4TB of personal data, names, Social Security numbers, financial account numbers, driver’s license numbers, , Names, Job Titles, Residences, Email Addresses, Phone Numbers, , Personally Identifiable Information, personal information from credit files, , Names, Certain impacted data elements, , names, Social Security numbers, dates of birth, financial account numbers, driver's license numbers, , Personal information of consumers, names, other unspecified data elements, , Limited Personal Information, , Name, Social Security Number, Date of Birth, , Names, Dates of Birth, Social Security Numbers (SSNs), Billing Addresses, Email Addresses, Phone Numbers, Reasons for Customer Transactions (e.g., free credit report requests), Customer Support Tickets and Messages, , Social Security Numbers (SSNs), Sensitive Personal Information, , Social Security numbers, birth dates and .
Most Significant System Affected: The most significant system affected in an incident was Third-Party Application (Consumer Support Operations) and Third-party application (US consumer support operations) and Third-party application used in U.S. consumer support operations and Salesforce-hosted databases and Third-party application.
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was engaged third-party cybersecurity experts for independent forensics review, .
Containment Measures in Most Recent Incident: The containment measures taken in the most recent incident was Quick containment within hours of discoveryIsolation of affected third-party application.
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Social Security numbers, Residences, Social Security Number, Names, Phone Numbers, Customer Support Tickets and Messages, Sensitive Personal Information, Certain impacted data elements, financial account numbers, Social Security Numbers (SSNs), Job Titles, other unspecified data elements, Email Addresses, Dates of Birth, Limited Personal Information, Personally Identifiable Information, Personal information of consumers, driver’s license numbers, Date of Birth, personal information from credit files, dates of birth, Billing Addresses, 4TB of personal data, Reasons for Customer Transactions (e.g., free credit report requests), names, Name, birth dates and driver's license numbers.
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 88.7M.
Highest Ransom Demanded: The highest ransom demanded in a ransomware incident was Yes.
Most Significant Legal Action: The most significant legal action taken for a regulatory violation was Class-action lawsuit in preparation.
Most Significant Lesson Learned: The most significant lesson learned from past incidents was Credit monitoring services are essential for mitigating post-breach identity theft risks., Even major financial institutions are vulnerable to data breaches. Proactive measures such as credit freezes, fraud alerts, and regular credit monitoring are critical for mitigating risks associated with identity theft and financial fraud.
Most Significant Recommendation Implemented: The most significant recommendation implemented to improve cybersecurity was Report identity theft to the Federal Trade Commission (IdentityTheft.gov) and IRS if SSNs are misused., Evaluate legal accountability for credit bureaus in mass exposure incidents., Freeze credit or place a fraud alert to prevent unauthorized account openings., Consider proactive credit freezes for affected individuals., Monitor credit reports regularly for suspicious activity., Monitor credit reports weekly via annualcreditreport.com, Change TransUnion account passwords/PINs if applicable, Monitor dark web forums for stolen data sales., Enroll in free credit monitoring offered by TransUnion, Leverage free credit monitoring services offered by affected institutions., Remain vigilant for signs of identity theft (e.g., unauthorized accounts, loans, or credit inquiries), Freeze credit reports with all three major bureaus (TransUnion, Equifax, Experian), Implement stricter OAuth and API access controls., Confirm the legitimacy of breach notifications before taking action., Strengthen third-party vendor security assessments, especially for Salesforce-connected applications., Consumers advised to freeze credit if not actively applying for credit. and Enhance consumer education on phishing risks post-breach..
Most Recent Source: The most recent source of information about an incident are TransUnion state filings, Office of the Maine Attorney General Filing, BleepingComputer, California Office of the Attorney General, Fox News (CyberGuy Report), WBAY (ABC Affiliate, Green Bay, WI), TechCrunch, CyberGuy.com - TransUnion Breach Coverage, Maine Office of the Attorney General, ITPro, Moneywise (article), CNET, Vermont Office of the Attorney General, TransUnion Data Breach Notice (Sample), Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) and Maine Attorney General's Office Filing.
Most Recent URL for Additional Resources: The most recent URL for additional resources on cybersecurity best practices is https://www.foxnews.com/tech/transunion-data-breach-what-you-need-to-know, https://www.cyberguy.com/transunion-data-breach/, https://www.bleepingcomputer.com/news/security/transunion-suffers-data-breach-impacting-over-44-million-people/, https://www.wbay.com, https://datcp.wi.gov .
Current Status of Most Recent Investigation: The current status of the most recent investigation is Investigated.
Most Recent Stakeholder Advisory: The most recent stakeholder advisory issued was Affected consumers will receive direct notifications with details on credit monitoring services., TransUnion emphasizes that core credit databases and credit reports were not compromised., TransUnion is offering proactive fraud assistance and 24 months of free credit monitoring to affected individuals., Wisconsin consumer protection officials advise credit freezes and monitoring., TransUnion recommends password/PIN changes for account holders., .
Most Recent Customer Advisory: The most recent customer advisory issued were an Sent out data breach letters to all affected parties, 24 Months of Free Credit Monitoring and Identity Theft Protection Offered, Notification letters sent to affected individuals with details about the incident and resources for assistance., Delete old online accounts to reduce exposed data.Avoid phishing scams; verify requests via official channels.Use strong, unique passwords and a password manager.Enable two-factor authentication (2FA) on critical accounts.Keep devices and software updated.Freeze credit with all three major bureaus (TransUnion, Equifax, Experian).Monitor financial accounts and credit reports regularly.Consider identity theft protection services (24 months provided free to affected individuals)., Confirm breach legitimacy before acting on notifications.Freeze credit or place fraud alerts.Monitor credit reports weekly for unauthorized activity.Report identity theft to FTC and IRS if SSN is compromised. and Letters sent to affected individuals offering free credit monitoring.Public notifications via Wisconsin DATCP data breach page.
Most Recent Entry Point: The most recent entry point used by an initial access broker were an Third-party application integrated with Salesforce (disguised as legitimate tool) and Authorized client’s credentials.
Most Significant Root Cause: The most significant root cause identified in post-incident analysis was Unauthorized access (specifics undisclosed), Unauthorized access to a third-party application serving US consumer support operations., Insecure third-party integrations with Salesforce applications.Inadequate oversight of OAuth-connected apps.Lack of segmentation between consumer support systems and core credit databases (though core systems were not breached)., Exploitation of vulnerabilities in Salesforce-hosted databases by ShinyHunters.
Most Significant Corrective Action: The most significant corrective action taken based on post-incident analysis was Engaged third-party cybersecurity experts for forensic review.Providing 24 months of credit monitoring to affected individuals.Collaborating with law enforcement for attribution and mitigation..
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