Company Details
deloitte
493,499
19,723,295
5416
deloitte.com
0
DEL_6858677
In-progress

Deloitte Company CyberSecurity Posture
deloitte.comDeloitte drives progress. Our firms around the world help clients become leaders wherever they choose to compete. Deloitte invests in outstanding people of diverse talents and backgrounds and empowers them to achieve more than they could elsewhere. Our work combines advice with action and integrity. We believe that when our clients and society are stronger, so are we. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited (“DTTL”), its global network of member firms, and their related entities. DTTL (also referred to as “Deloitte Global”) and each of its member firms are legally separate and independent entities. DTTL does not provide services to clients. Please see www.deloitte.com/about to learn more. The content on this page contains general information only, and none of Deloitte Touche Tohmatsu Limited, its member firms, or their related entities (collectively the “Deloitte Network”) is, by means of this publication, rendering professional advice or services. Before making any decision or taking any action that may affect your finances or your business, you should consult a qualified professional adviser. No entity in the Deloitte Network shall be responsible for any loss whatsoever sustained by any person who relies on content from this page.
Company Details
deloitte
493,499
19,723,295
5416
deloitte.com
0
DEL_6858677
In-progress
Between 800 and 849

Deloitte Global Score (TPRM)XXXX

Description: On November 8, 2022, the Vermont Office of the Attorney General reported that Deloitte Tax LLP experienced an inadvertent disclosure of personal information related to shareholders of APC on September 30, 2022. The notification does not specify the number of affected individuals but mentions that certain personal information was disclosed without evidence of improper use.
Description: A threat actor using the alias '303' allegedly breached Deloitte's systems and leaked sensitive internal data on a dark web forum. The breach involves GitHub credentials and source code from internal project repositories belonging to Deloitte’s U.S. consulting division. The leaked data includes GitHub credentials that could potentially grant unauthorized access to Deloitte’s internal development infrastructure, as well as source code from proprietary projects. This incident adds to Deloitte’s ongoing cybersecurity challenges, with multiple breach allegations in recent months.
Description: Deloitte, an accounting business, revealed that a sophisticated breach hijacked its global email server. The Guardian initially reported the problem, which claims that hackers may have obtained usernames, passwords, and personal information of high-profile clients of prominent accounting firms in addition to emails belonging to corporate customers. Hackers have access to IP addresses, company architectural blueprints, and health data in addition to emails. Although Deloitte attempted to downplay the occurrence, it was established that it was immediately reported to government authorities and the impacted clients. In my opinion, incidents of this nature are always significant.
Description: The cyberattack on **RIBridges**, Rhode Island’s online public benefits system managed by Deloitte, compromised the personal data of approximately **650,000 Rhode Islanders**. The breach, executed by the cybercriminal group **Brain Cipher**, exposed sensitive information such as **names, bank accounts, and Social Security numbers**, some of which was later uploaded to the **dark web**. Affected individuals included users of public benefit programs like **Medicaid, SNAP (Supplemental Nutrition Assistance Program)**, and **HealthSource RI** (the state’s health insurance marketplace). The incident led to **multiple class-action lawsuits**, with plaintiffs alleging Deloitte’s failure to secure, encrypt, or adequately destroy personal data, resulting in financial losses for victims. Deloitte settled with the state for **$5 million** to cover breach-related expenses and is under ongoing civil investigation by the Rhode Island Attorney General. The breach severely damaged trust in the system, prompting the state to explore alternative vendors for modernization before Deloitte’s contract expires in **2026**.
Description: Deloitte, a leading global accountancy firm, suffered a sophisticated hack that compromised the confidential emails and plans of some of its blue-chip clients. The breach, which went unnoticed for months, allowed hackers access to Deloitte's global email server through an inadequately secured administrator account. The attack potentially exposed a vast amount of sensitive information including usernames, passwords, IP addresses, architectural diagrams, and health information. Deloitte's response involved an intensive review to determine the hack's extent and to reinforce their cybersecurity defences. Despite the breach, Deloitte asserts that the impact on clients was minimal and that there has been no disruption to client businesses or its service capacity. This incident is particularly damaging not just for the loss of confidential information but also because Deloitte offers cybersecurity advice to its clients, emphasizing the irony and seriousness of the breach.


Deloitte has 132.56% more incidents than the average of same-industry companies with at least one recorded incident.
Deloitte has 207.69% more incidents than the average of all companies with at least one recorded incident.
Deloitte reported 2 incidents this year: 1 cyber attacks, 0 ransomware, 0 vulnerabilities, 1 data breaches, compared to industry peers with at least 1 incident.
Deloitte cyber incidents detection timeline including parent company and subsidiaries

Deloitte drives progress. Our firms around the world help clients become leaders wherever they choose to compete. Deloitte invests in outstanding people of diverse talents and backgrounds and empowers them to achieve more than they could elsewhere. Our work combines advice with action and integrity. We believe that when our clients and society are stronger, so are we. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited (“DTTL”), its global network of member firms, and their related entities. DTTL (also referred to as “Deloitte Global”) and each of its member firms are legally separate and independent entities. DTTL does not provide services to clients. Please see www.deloitte.com/about to learn more. The content on this page contains general information only, and none of Deloitte Touche Tohmatsu Limited, its member firms, or their related entities (collectively the “Deloitte Network”) is, by means of this publication, rendering professional advice or services. Before making any decision or taking any action that may affect your finances or your business, you should consult a qualified professional adviser. No entity in the Deloitte Network shall be responsible for any loss whatsoever sustained by any person who relies on content from this page.


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Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
The official website of Deloitte is http://www.deloitte.com/.
According to Rankiteo, Deloitte’s AI-generated cybersecurity score is 809, reflecting their Good security posture.
According to Rankiteo, Deloitte currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
According to Rankiteo, Deloitte is not certified under SOC 2 Type 1.
According to Rankiteo, Deloitte does not hold a SOC 2 Type 2 certification.
According to Rankiteo, Deloitte is not listed as GDPR compliant.
According to Rankiteo, Deloitte does not currently maintain PCI DSS compliance.
According to Rankiteo, Deloitte is not compliant with HIPAA regulations.
According to Rankiteo,Deloitte is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Deloitte operates primarily in the Business Consulting and Services industry.
Deloitte employs approximately 493,499 people worldwide.
Deloitte presently has no subsidiaries across any sectors.
Deloitte’s official LinkedIn profile has approximately 19,723,295 followers.
Deloitte is classified under the NAICS code 5416, which corresponds to Management, Scientific, and Technical Consulting Services.
No, Deloitte does not have a profile on Crunchbase.
Yes, Deloitte maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/deloitte.
As of December 10, 2025, Rankiteo reports that Deloitte has experienced 5 cybersecurity incidents.
Deloitte has an estimated 18,259 peer or competitor companies worldwide.
Incident Types: The types of cybersecurity incidents that have occurred include Cyber Attack and Breach.
Detection and Response: The company detects and responds to cybersecurity incidents through an law enforcement notified with yes, and communication strategy with reported to government authorities and impacted clients, and remediation measures with intensive review and reinforcement of cybersecurity defences, and remediation measures with $5 million payment to the state for breach-related expenses, remediation measures with settlement of class-action lawsuits (details pending court approval), and recovery measures with exploring alternative vendors (e.g., northland highland holding company) to modernize ribridges system..
Title: Deloitte Global Email Server Breach
Description: A sophisticated breach hijacked Deloitte's global email server, potentially compromising usernames, passwords, and personal information of high-profile clients, as well as emails, IP addresses, company architectural blueprints, and health data.
Type: Data Breach
Attack Vector: Email Server Compromise
Threat Actor: Hackers
Motivation: Data Theft
Title: Deloitte Data Breach
Description: Deloitte, a leading global accountancy firm, suffered a sophisticated hack that compromised the confidential emails and plans of some of its blue-chip clients. The breach, which went unnoticed for months, allowed hackers access to Deloitte's global email server through an inadequately secured administrator account. The attack potentially exposed a vast amount of sensitive information including usernames, passwords, IP addresses, architectural diagrams, and health information. Deloitte's response involved an intensive review to determine the hack's extent and to reinforce their cybersecurity defences. Despite the breach, Deloitte asserts that the impact on clients was minimal and that there has been no disruption to client businesses or its service capacity. This incident is particularly damaging not just for the loss of confidential information but also because Deloitte offers cybersecurity advice to its clients, emphasizing the irony and seriousness of the breach.
Type: Data Breach
Attack Vector: Inadequately secured administrator account
Vulnerability Exploited: Weak security on administrator account
Title: Alleged Data Breach by Threat Actor '303'
Description: A threat actor using the alias '303' allegedly claimed to have breached the company’s systems and leaked sensitive internal data on a dark web forum.
Type: Data Breach
Attack Vector: Credential Theft, Data Exfiltration
Vulnerability Exploited: GitHub Credentials
Threat Actor: 303
Title: Inadvertent Disclosure of Personal Information at Deloitte Tax LLP
Description: Deloitte Tax LLP experienced an inadvertent disclosure of personal information related to shareholders of APC.
Date Detected: 2022-09-30
Date Publicly Disclosed: 2022-11-08
Type: Data Breach
Attack Vector: Inadvertent Disclosure
Title: Cyberattack on RIBridges by Brain Cipher Affecting 650,000 Rhode Islanders
Description: The cybercriminal group Brain Cipher illegally accessed the personal information of approximately 650,000 Rhode Islanders via the state's RIBridges online public benefits system. The breach occurred between July and November of the previous year, exposing data such as names, bank accounts, and Social Security numbers. Some of the breached data was uploaded to the dark web. Deloitte, the vendor managing the platform, agreed to settle multiple class-action lawsuits and paid the state $5 million to cover breach-related expenses. The state is exploring alternative vendors to modernize the system.
Date Publicly Disclosed: 2023-12
Type: data breach
Threat Actor: Brain Cipher
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 global email server, Inadequately secured administrator account and GitHub credentials.

Data Compromised: Usernames, Passwords, Personal information, Emails, Ip addresses, Company architectural blueprints, Health data
Systems Affected: global email server

Data Compromised: Usernames, Passwords, Ip addresses, Architectural diagrams, Health information
Systems Affected: Global email server
Brand Reputation Impact: Significant

Data Compromised: GitHub credentials, source code from internal project repositories

Data Compromised: Personal information

Data Compromised: Names, Bank accounts, Social security numbers
Systems Affected: RIBridges (Rhode Island's online public benefits system)
Customer Complaints: Multiple class-action lawsuits filed
Brand Reputation Impact: Significant (lawsuits, civil investigation, vendor replacement considerations)
Legal Liabilities: $5 million paid to the state by DeloitteClass-action lawsuits (Pannozzi v. Deloitte Consulting LLP)Civil investigation by Rhode Island Attorney General
Identity Theft Risk: High (personal data exposed on dark web)
Payment Information Risk: High (bank accounts compromised)
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Usernames, Passwords, Personal Information, Emails, Ip Addresses, Company Architectural Blueprints, Health Data, , Usernames, Passwords, Ip Addresses, Architectural Diagrams, Health Information, , GitHub credentials, source code, Personal Information, , Personally Identifiable Information (Pii), Financial Data and .

Entity Name: Deloitte
Entity Type: Accounting Firm
Industry: Accounting
Customers Affected: high-profile clients, corporate customers

Entity Name: Deloitte
Entity Type: Accountancy Firm
Industry: Financial Services
Location: Global
Size: Large
Customers Affected: Blue-chip clients

Entity Name: Deloitte
Entity Type: Consulting Firm
Industry: Consulting
Location: United States

Entity Name: Deloitte Tax LLP
Entity Type: Professional Services Firm
Industry: Financial Services

Entity Name: Rhode Island State Government (RIBridges)
Entity Type: Government Agency
Industry: Public Sector
Location: Rhode Island, USA
Customers Affected: 650,000

Entity Name: Deloitte Consulting LLP
Entity Type: Vendor/Service Provider
Industry: Consulting, Technology Services

Law Enforcement Notified: Yes
Communication Strategy: Reported to government authorities and impacted clients

Remediation Measures: Intensive review and reinforcement of cybersecurity defences

Remediation Measures: $5 million payment to the state for breach-related expensesSettlement of class-action lawsuits (details pending court approval)
Recovery Measures: Exploring alternative vendors (e.g., Northland Highland Holding Company) to modernize RIBridges system

Type of Data Compromised: Usernames, Passwords, Personal information, Emails, Ip addresses, Company architectural blueprints, Health data
Sensitivity of Data: High
Personally Identifiable Information: Yes

Type of Data Compromised: Usernames, Passwords, Ip addresses, Architectural diagrams, Health information
Sensitivity of Data: High

Type of Data Compromised: GitHub credentials, source code
Sensitivity of Data: High
File Types Exposed: Source code files

Type of Data Compromised: Personal information

Type of Data Compromised: Personally identifiable information (pii), Financial data
Number of Records Exposed: 650,000
Sensitivity of Data: High (includes Social Security numbers, bank accounts)
Data Exfiltration: Yes (some data uploaded to the dark web)
Data Encryption: Allegedly inadequate (per lawsuit: failure to 'properly secure, safeguard, encrypt')
Personally Identifiable Information: namesSocial Security numbersbank account details
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Intensive review and reinforcement of cybersecurity defences, $5 million payment to the state for breach-related expenses, Settlement of class-action lawsuits (details pending court approval), .
Data Recovery from Ransomware: The company recovers data encrypted by ransomware through Exploring alternative vendors (e.g., Northland Highland Holding Company) to modernize RIBridges system, .

Legal Actions: Class-action lawsuits (Pannozzi v. Deloitte Consulting LLP), Civil investigation by Rhode Island Attorney General,
Ensuring Regulatory Compliance: The company ensures compliance with regulatory requirements through Class-action lawsuits (Pannozzi v. Deloitte Consulting LLP), Civil investigation by Rhode Island Attorney General, .

Source: The Guardian

Source: Cybersecurity monitoring services

Source: Vermont Office of the Attorney General
Date Accessed: 2022-11-08

Source: The Herald

Source: Court documents (Pannozzi v. Deloitte Consulting LLP)
Date Accessed: 2024-08-25

Source: Press statement by Gov. Dan McKee
Date Accessed: 2024-02
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: The Guardian, and Source: Cybersecurity monitoring services, and Source: Vermont Office of the Attorney GeneralDate Accessed: 2022-11-08, and Source: The Herald, and Source: Court documents (Pannozzi v. Deloitte Consulting LLP)Date Accessed: 2024-08-25, and Source: Press statement by Gov. Dan McKeeDate Accessed: 2024-02.

Investigation Status: Ongoing

Investigation Status: Ongoing (civil investigation by RI Attorney General, class-action settlements pending court approval)
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through Reported to government authorities and impacted clients.

Entry Point: global email server
High Value Targets: High-Profile Clients, Corporate Customers,
Data Sold on Dark Web: High-Profile Clients, Corporate Customers,

Entry Point: Inadequately secured administrator account

Entry Point: GitHub credentials

High Value Targets: Ribridges Database (Public Benefits System),
Data Sold on Dark Web: Ribridges Database (Public Benefits System),

Root Causes: Failure To Secure, Safeguard, Or Encrypt Personal Data (Alleged In Lawsuit), Vendor (Deloitte) Oversight Or System Vulnerabilities,
Corrective Actions: Settlement Agreements For Affected Individuals, Vendor Contract Termination (Expires June 2026) And Exploration Of Alternatives, $5 Million Payment To State For Breach-Related Expenses,
Corrective Actions Taken: The company has taken the following corrective actions based on post-incident analysis: Settlement Agreements For Affected Individuals, Vendor Contract Termination (Expires June 2026) And Exploration Of Alternatives, $5 Million Payment To State For Breach-Related Expenses, .
Last Attacking Group: The attacking group in the last incident were an Hackers, 303 and Brain Cipher.
Most Recent Incident Detected: The most recent incident detected was on 2022-09-30.
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2023-12.
Most Significant Data Compromised: The most significant data compromised in an incident were usernames, passwords, personal information, emails, IP addresses, company architectural blueprints, health data, , usernames, passwords, IP addresses, architectural diagrams, health information, , GitHub credentials, source code from internal project repositories, Personal Information, , names, bank accounts, Social Security numbers and .
Most Significant System Affected: The most significant system affected in an incident was global email server and and RIBridges (Rhode Island's online public benefits system).
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Social Security numbers, passwords, personal information, IP addresses, health information, GitHub credentials, source code from internal project repositories, company architectural blueprints, names, bank accounts, architectural diagrams, Personal Information, usernames, emails and health data.
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 650.0K.
Most Significant Legal Action: The most significant legal action taken for a regulatory violation was Class-action lawsuits (Pannozzi v. Deloitte Consulting LLP), Civil investigation by Rhode Island Attorney General, .
Most Recent Source: The most recent source of information about an incident are The Guardian, Cybersecurity monitoring services, Vermont Office of the Attorney General, Press statement by Gov. Dan McKee, The Herald and Court documents (Pannozzi v. Deloitte Consulting LLP).
Current Status of Most Recent Investigation: The current status of the most recent investigation is Ongoing.
Most Recent Entry Point: The most recent entry point used by an initial access broker were an global email server, Inadequately secured administrator account and GitHub credentials.
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WeGIA is an open source Web Manager for Institutions with a focus on Portuguese language users. Versions 3.5.4 and below contain a Stored Cross-Site Scripting (XSS) vulnerability in the /WeGIA/html/geral/configurar_senhas.php endpoint. The application does not sanitize user-controlled data before rendering it inside the employee selection dropdown. The application retrieves employee names from the database and injects them directly into HTML <option> elements without proper escaping. This issue is fixed in version 3.5.5.
ZITADEL is an open-source identity infrastructure tool. Versions 4.0.0-rc.1 through 4.7.0 are vulnerable to DOM-Based XSS through the Zitadel V2 logout endpoint. The /logout endpoint insecurely routes to a value that is supplied in the post_logout_redirect GET parameter. As a result, unauthenticated remote attacker can execute malicious JS code on Zitadel users’ browsers. To carry out an attack, multiple user sessions need to be active in the same browser, however, account takeover is mitigated when using Multi-Factor Authentication (MFA) or Passwordless authentication. This issue is fixed in version 4.7.1.
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NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are vulnerable to directory traversal through the App.add_media_files() function, which allows a remote attacker to read arbitrary files on the server filesystem. This issue is fixed in version 3.4.0.
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