Company Details
gallagher-global
43,519
587,599
524
linktr.ee
0
GAL_7156214
In-progress

Gallagher Company CyberSecurity Posture
linktr.eeGallagher, a global insurance brokerage, risk management, and consulting firm, serves communities around the globe, helping clients address risk, protecting assets, and recovering from losses. The products and services we provide keep businesses and institutions running, and enable individuals and families to face their future with confidence. Gallagher provides retail and wholesale property and casualty brokerage, alternative risk transfer services, employee benefit consulting, and actuarial services. Gallagher also offers claims and information management, risk control consulting and appraisal services, human resource consulting, and retirement services. Follow us on social: Instagram: http://instagram.com/gallagherglobal Facebook: http://www.facebook.com/GallagherGlobal Twitter: https://twitter.com/GallagherGlobal YouTube: https://www.youtube.com/GallagherGlobal
Company Details
gallagher-global
43,519
587,599
524
linktr.ee
0
GAL_7156214
In-progress
Between 750 and 799

Gallagher Global Score (TPRM)XXXX

Description: The California Office of the Attorney General reported a data breach involving Gallagher Bassett Services, Inc. on August 3, 2018. The breach potentially affected approximately 1,294 claimants whose information may have been accessed by an unauthorized individual impersonating a licensed physician, potentially exposing names, Social Security numbers, medical information, and health insurance information.
Description: The California Office of the Attorney General disclosed a **data breach** affecting **Arthur J. Gallagher & Co.** on **December 6, 2019**, though the incident itself occurred earlier on **March 15, 2019**. The breach notification lacked critical specifics, including the **number of impacted individuals** and the **types of compromised data**. Given the absence of explicit details, the nature of the breach suggests potential exposure of sensitive information—possibly including **employee or customer records**, financial data, or proprietary corporate details—though the exact scope remains unverified.The delayed disclosure (nearly **nine months** after the breach) raises concerns about transparency and incident response protocols. Without confirmation of stolen data or malicious exploitation, the breach’s immediate consequences appear limited to **reputational harm** and regulatory scrutiny. However, the lack of clarity on affected data categories (e.g., personal identifiers, financial records, or internal documents) leaves uncertainties about long-term risks, such as **identity theft, fraud, or compliance violations**.As a global insurance brokerage and risk management firm, Arthur J. Gallagher & Co. handles vast volumes of sensitive client and employee data, making such breaches particularly critical. The incident underscores the need for robust cybersecurity measures and timely breach notifications to mitigate potential fallout.
Description: The Maine Office of the Attorney General reported a data breach at Arthur J. Gallagher & Co. between June 3, 2020, and September 26, 2020, due to a hacking incident. The breach affected 5,577 individuals, including 2 Maine residents. The compromised information included Social Security numbers.
Description: US-based global insurance brokerage and risk management firm Arthur J. Gallagher suffered a data breach after a ransomware attack on its systems. The compromised information includes Social Security number, driver's license, passport or other government identification number, date of birth, username and password, employee identification number, financial account, and other personal information of its clients. The company has informed impacted customers about the breach and has asked them to be alert about any suspicious activity.
Description: The Maine Office of the Attorney General reported a data breach involving Arthur J. Gallagher & Co. on June 30, 2021. The breach was detected on September 26, 2020, and it involved unauthorized access to internal systems, affecting approximately 7,376 individuals, including 12 Maine residents. The compromised data included personal information such as Social Security numbers and financial account details, and the company offered 24 months of identity theft protection services through Kroll.


No incidents recorded for Gallagher in 2025.
No incidents recorded for Gallagher in 2025.
No incidents recorded for Gallagher in 2025.
Gallagher cyber incidents detection timeline including parent company and subsidiaries

Gallagher, a global insurance brokerage, risk management, and consulting firm, serves communities around the globe, helping clients address risk, protecting assets, and recovering from losses. The products and services we provide keep businesses and institutions running, and enable individuals and families to face their future with confidence. Gallagher provides retail and wholesale property and casualty brokerage, alternative risk transfer services, employee benefit consulting, and actuarial services. Gallagher also offers claims and information management, risk control consulting and appraisal services, human resource consulting, and retirement services. Follow us on social: Instagram: http://instagram.com/gallagherglobal Facebook: http://www.facebook.com/GallagherGlobal Twitter: https://twitter.com/GallagherGlobal YouTube: https://www.youtube.com/GallagherGlobal


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Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
The official website of Gallagher is https://linktr.ee/GallagherGlobal.
According to Rankiteo, Gallagher’s AI-generated cybersecurity score is 762, reflecting their Fair security posture.
According to Rankiteo, Gallagher currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
According to Rankiteo, Gallagher is not certified under SOC 2 Type 1.
According to Rankiteo, Gallagher does not hold a SOC 2 Type 2 certification.
According to Rankiteo, Gallagher is not listed as GDPR compliant.
According to Rankiteo, Gallagher does not currently maintain PCI DSS compliance.
According to Rankiteo, Gallagher is not compliant with HIPAA regulations.
According to Rankiteo,Gallagher is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Gallagher operates primarily in the Insurance industry.
Gallagher employs approximately 43,519 people worldwide.
Gallagher presently has no subsidiaries across any sectors.
Gallagher’s official LinkedIn profile has approximately 587,599 followers.
Gallagher is classified under the NAICS code 524, which corresponds to Insurance Carriers and Related Activities.
Yes, Gallagher has an official profile on Crunchbase, which can be accessed here: https://www.crunchbase.com/organization/arthur-j-gallagher-co.
Yes, Gallagher maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/gallagher-global.
As of December 11, 2025, Rankiteo reports that Gallagher has experienced 5 cybersecurity incidents.
Gallagher has an estimated 15,015 peer or competitor companies worldwide.
Incident Types: The types of cybersecurity incidents that have occurred include Breach.
Detection and Response: The company detects and responds to cybersecurity incidents through an communication strategy with the company has informed impacted customers about the breach and has asked them to be alert about any suspicious activity., and third party assistance with kroll..
Title: Arthur J. Gallagher Data Breach
Description: US-based global insurance brokerage and risk management firm Arthur J. Gallagher suffered a data breach after a ransomware attack on its systems. The compromised information includes Social Security number, driver's license, passport or other government identification number, date of birth, username and password, employee identification number, financial account, and other personal information of its clients. The company has informed impacted customers about the breach and has asked them to be alert about any suspicious activity.
Type: Data Breach
Attack Vector: Ransomware
Title: Arthur J. Gallagher & Co. Data Breach
Description: The Maine Office of the Attorney General reported that Arthur J. Gallagher & Co. experienced a data breach impacting between June 3, 2020 and September 26, 2020, involving a hacking incident. The breach affected 5,577 individuals in total, with 2 Maine residents specifically notified. The compromised information included Social Security numbers.
Type: Data Breach
Attack Vector: Hacking
Title: Data Breach at Arthur J. Gallagher & Co.
Description: Unauthorized access to internal systems compromising personal information including Social Security numbers and financial account details.
Date Detected: 2020-09-26
Date Publicly Disclosed: 2021-06-30
Type: Data Breach
Attack Vector: Unauthorized Access
Title: Data Breach at Gallagher Bassett Services, Inc.
Description: The California Office of the Attorney General reported a data breach involving Gallagher Bassett Services, Inc. on August 3, 2018. The breach potentially affected approximately 1,294 claimants whose information may have been accessed by an unauthorized individual impersonating a licensed physician, potentially exposing names, Social Security numbers, medical information, and health insurance information.
Date Detected: 2018-08-03
Date Publicly Disclosed: 2018-08-03
Type: Data Breach
Attack Vector: Impersonation
Threat Actor: Unauthorized Individual
Title: Data Breach at Arthur J. Gallagher & Co.
Description: The California Office of the Attorney General reported a data breach involving Arthur J. Gallagher & Co. on December 6, 2019. The breach occurred on March 15, 2019, but specific details regarding the number of affected individuals and types of information compromised are unknown.
Date Publicly Disclosed: 2019-12-06
Type: Data Breach
Common Attack Types: The most common types of attacks the company has faced is Breach.

Data Compromised: Social security number, Driver's license, Passport or other government identification number, Date of birth, Username and password, Employee identification number, Financial account, Other personal information

Data Compromised: Social security numbers

Data Compromised: Social security numbers, Financial account details

Data Compromised: Names, Social security numbers, Medical information, Health insurance information
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Social Security Number, Driver'S License, Passport Or Other Government Identification Number, Date Of Birth, Username And Password, Employee Identification Number, Financial Account, Other Personal Information, , Social Security Numbers, , Social Security Numbers, Financial Account Details, , Names, Social Security Numbers, Medical Information, Health Insurance Information and .

Entity Name: Arthur J. Gallagher
Entity Type: Company
Industry: Insurance and Risk Management
Location: United States

Entity Name: Arthur J. Gallagher & Co.
Entity Type: Company
Customers Affected: 5577

Entity Name: Arthur J. Gallagher & Co.
Entity Type: Company
Industry: Insurance
Customers Affected: 7376

Entity Name: Gallagher Bassett Services, Inc.
Entity Type: Company
Industry: Insurance
Location: California
Customers Affected: 1294

Entity Name: Arthur J. Gallagher & Co.
Entity Type: Company
Industry: Insurance, Risk Management, and Consulting
Location: United States (Headquarters in Rolling Meadows, Illinois)

Communication Strategy: The company has informed impacted customers about the breach and has asked them to be alert about any suspicious activity.

Third Party Assistance: Kroll
Third-Party Assistance: The company involves third-party assistance in incident response through Kroll.

Type of Data Compromised: Social security number, Driver's license, Passport or other government identification number, Date of birth, Username and password, Employee identification number, Financial account, Other personal information
Sensitivity of Data: High

Type of Data Compromised: Social security numbers
Number of Records Exposed: 5577

Type of Data Compromised: Social security numbers, Financial account details
Number of Records Exposed: 7376
Sensitivity of Data: High

Type of Data Compromised: Names, Social security numbers, Medical information, Health insurance information
Number of Records Exposed: 1294
Sensitivity of Data: High

Regulatory Notifications: authority: California Office of the Attorney General, date: 2019-12-06

Source: Maine Office of the Attorney General

Source: Maine Office of the Attorney General
Date Accessed: 2021-06-30

Source: California Office of the Attorney General
Date Accessed: 2018-08-03

Source: California Office of the Attorney General
Date Accessed: 2019-12-06
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Maine Office of the Attorney General, and Source: Maine Office of the Attorney GeneralDate Accessed: 2021-06-30, and Source: California Office of the Attorney GeneralDate Accessed: 2018-08-03, and Source: California Office of the Attorney GeneralDate Accessed: 2019-12-06.
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through The company has informed impacted customers about the breach and has asked them to be alert about any suspicious activity..

Customer Advisories: The company has informed impacted customers about the breach and has asked them to be alert about any suspicious activity.
Advisories Provided: The company provides the following advisories to stakeholders and customers following an incident: was The company has informed impacted customers about the breach and has asked them to be alert about any suspicious activity..
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as Kroll.
Last Attacking Group: The attacking group in the last incident was an Unauthorized Individual.
Most Recent Incident Detected: The most recent incident detected was on 2020-09-26.
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2019-12-06.
Most Significant Data Compromised: The most significant data compromised in an incident were Social Security number, driver's license, passport or other government identification number, date of birth, username and password, employee identification number, financial account, other personal information, , Social Security numbers, , Social Security numbers, financial account details, , Names, Social Security numbers, Medical information, Health insurance information and .
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was Kroll.
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Social Security numbers, passport or other government identification number, username and password, financial account details, Health insurance information, Names, employee identification number, other personal information, Social Security number, date of birth, driver's license, Medical information and financial account.
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 1.4K.
Most Recent Source: The most recent source of information about an incident are California Office of the Attorney General and Maine Office of the Attorney General.
Most Recent Customer Advisory: The most recent customer advisory issued was an The company has informed impacted customers about the breach and has asked them to be alert about any suspicious activity.
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FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX systems. Versions prior to 16.0.96 and 17.0.1 through 17.0.9 have a weak default password. By default, this is a 6 digit numeric value which can be brute forced. (This is the app_password parameter). Depending on local configuration, this password could be the extension, voicemail, user manager, DPMA or EPM phone admin password. This issue is fixed in versions 16.0.96 and 17.0.10.
Neuron is a PHP framework for creating and orchestrating AI Agents. In versions 2.8.11 and below, the MySQLWriteTool executes arbitrary SQL provided by the caller using PDO::prepare() + execute() without semantic restrictions. This is consistent with the name (“write tool”), but in an LLM/agent context it becomes a high-risk capability: prompt injection or indirect prompt manipulation can cause execution of destructive queries such as DROP TABLE, TRUNCATE, DELETE, ALTER, or privilege-related statements (subject to DB permissions). Deployments that expose an agent with MySQLWriteTool enabled to untrusted input and/or run the tool with a DB user that has broad privileges are impacted. This issue is fixed in version 2.8.12.
Neuron is a PHP framework for creating and orchestrating AI Agents. Versions 2.8.11 and below use MySQLSelectTool, which is vulnerable to Read-Only Bypass. MySQLSelectTool is intended to be a read-only SQL tool (e.g., for LLM agent querying, however, validation based on the first keyword (e.g., SELECT) and a forbidden-keyword list does not block file-writing constructs such as INTO OUTFILE / INTO DUMPFILE. As a result, an attacker who can influence the tool input (e.g., via prompt injection through a public agent endpoint) may write arbitrary files to the DB server if the MySQL/MariaDB account has the FILE privilege and server configuration permits writes to a useful location (e.g., a web-accessible directory). This issue is fixed in version 2.8.12.
Okta Java Management SDK facilitates interactions with the Okta management API. In versions 11.0.0 through 20.0.0, race conditions may arise from concurrent requests using the ApiClient class. This could cause a status code or response header from one request’s response to influence another request’s response. This issue is fixed in version 20.0.1.
The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. When using versions 4.11.0 through 4.11.2 and 4.12.0, simultaneous requests on the same client may result in improper lookups in the TokenRequestCache for the request results. This issue is fixed in versions 4.11.2 and 4.12.1.

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