LIBERTY MUTUAL GROUP INC.
ent_019e61c1b1bb8c3f7e7f847785a0b620
Disclosures
7
State AG · 5 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
70,328
nationwide · State AG OR
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- LIBERTY MUTUAL GROUP INC.
- Normalized
- liberty mutual— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- QUR0DG15Z6FFGYCHH861
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (7)newest first
- New Hampshire State AGas victim2021-04-28
Liberty Mutual Group, Inc. filed an amended data breach notice with the New Hampshire Attorney General regarding unauthorized access to its auto insurance quoting websites (LibertyMutual.com and GetCertainly.com). The incident involved external actors exploiting the public-facing application to create fraudulent insurance policies using stolen personal information (names, DOB, driver's license numbers). The breach affected 78 New Hampshire residents, with activity occurring between November 2020 and March 2021. Liberty Mutual responded by masking sensitive data, canceling fraudulent policies, and offering credit monitoring.
- Indiana State AGas victim2021-04-06
Liberty Mutual Group, Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2020-11-21 and was reported on 2021-04-06. 222 Indiana residents were affected. 66,438 individuals affected in total.
- New Hampshire State AGas victim2021-04-01
Liberty Mutual Group, Inc. notified the NH AG of a data breach involving unauthorized access to auto-quoting websites (GetCertainly.com and LibertyMutual.com) between Nov 21, 2020 and Jan 22, 2021. Attackers used stolen names/DOB to access unmasked driver's license numbers via a pre-fill service. Discovered Jan 21, 2021. Approx 81 NH residents affected. Remediation included removing unmasked DL display and offering 1-year credit monitoring.
- Oregon State AGas victim2021-03-31
Liberty Mutual Group, Inc. reported a data breach to the Oregon Attorney General. The breach was reported on 2021-03-31. The breach occurred during 11/21/2020 - 1/22/2021, 1/21/2021 - 1/21/2021, 3/6/2021 - 3/12/2021. The breach was discovered on 1/21/20211/22/20213/11/2021. 70,328 individuals were affected.
- California State AGas victim2021-03-30
Liberty Mutual Group, Inc. disclosed two incidents of unauthorized access to its public websites (LibertyMutual.com and GetCertainly.com). In the first incident (Nov 2020-Jan 2021), an unauthorized third party used the online auto insurance quote application to access driver's license numbers. In the second incident (Mar 2021), third parties created fraudulent accounts to access names, dates of birth, and driver's license numbers. Liberty Mutual contained the incidents by disabling access and masking data, and offered credit monitoring to affected individuals.
- Massachusetts State AGas victim2021-03-29
Liberty Mutual Group, Inc reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2021-03-29. 625 Massachusetts residents were affected. The report records the breach type as electronic.
- Massachusetts State AGas victim2011-03-01
Liberty Mutual reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2011-03-01. 1 Massachusetts residents were affected. The report records the breach type as paper.
Subsidiary disclosures (newest 10)filed by group companies
◈ These filings were made by or about subsidiaries of LIBERTY MUTUAL GROUP INC. — not by LIBERTY MUTUAL GROUP INC. itself. Corporate relationships are mapped from GLEIF relationship records and SEC Exhibit 21 filings.
- GLOBALLeak Sitevia Liberty Insurance Corporation2026-06-10
Liberty Insurance Corporation is a Philippine non-life insurance company established in 1953, headquartered in Makati Ci...
- GLOBALLeak Sitevia Liberty Mutual Insurance Company2026-04-30
Liberty Mutual Insurance is a leading American insurance company headquartered in Boston, Massachusetts. Founded in 1912, it operates in the property and casualty insurance industry, offering products such as auto, home, life, and commercial insurance. The company serves individuals and businesses across the United States and internationally, making it one of the largest global insurers by premium revenue.
- Indiana State AGvia STATE AUTOMOBILE MUTUAL INSURANCE COMPANY2021-07-07
State Automobile Mutual Insurance Company reported a data breach to the Indiana Attorney General. The breach occurred on 2021-01-11 and was reported on 2021-07-07. 3 Indiana residents were affected. 33 individuals affected in total.
- Indiana State AGvia STATE AUTOMOBILE MUTUAL INSURANCE COMPANY2021-05-11
State Automobile Mutual Insurance Company reported a data breach to the Indiana Attorney General. The breach occurred on 2021-03-11 and was reported on 2021-05-11. 343 Indiana residents were affected. 122,145 individuals affected in total.
- New Hampshire State AGvia STATE AUTOMOBILE MUTUAL INSURANCE COMPANY2021-05-11
State Automobile Mutual Insurance Company notified the New Hampshire Attorney General of a data security incident affecting 104 NH residents. Between March 11 and March 31, 2021, an unknown actor exploited the insurance quote application process to trigger a prefill function, exposing names, driver's license numbers, dates of birth, and gender. State Auto engaged a cybersecurity firm, notified law enforcement, and offered one year of credit monitoring via Kroll to affected individuals.
- California State AGvia STATE AUTOMOBILE MUTUAL INSURANCE COMPANY2021-05-11
State Automobile Mutual Insurance Company experienced an incident between March 11 and March 31, 2021, where an unknown actor abused the company's auto insurance quote application process. By initiating quotes using addresses not obtained from State Auto, the actor triggered a prefill process that exposed personal information including names, driver's license numbers, dates of birth, and gender. The company engaged a cybersecurity firm, notified law enforcement, and offered one year of identity monitoring via Kroll. No malware or ransomware was involved; the breach resulted from the exploitation of a public-facing application feature.
- Massachusetts State AGvia STATE AUTOMOBILE MUTUAL INSURANCE COMPANY2021-05-11
State Automobile Mutual Insurance Company reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2021-05-11. 841 Massachusetts residents were affected. The report records the breach type as electronic.
- Illinois State AGvia STATE AUTOMOBILE MUTUAL INSURANCE COMPANY2021-01-01
STATE AUTOMOBILE MUTUAL INSURANCE CO filed a data-breach notice with the Illinois Attorney General during 2021 (case 21-171). The register records the breach as discovered on March 31, 2021. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
- Massachusetts State AGvia Liberty Mutual Insurance Company2012-09-06
Liberty Mutual Insurance reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2012-09-06. 3 Massachusetts residents were affected. The report records the breach type as electronic.
- Massachusetts State AGvia Liberty Mutual Insurance Company2010-10-07
Liberty Mutual Insurance Company reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2010-10-07. 25 Massachusetts residents were affected. The report records the breach type as paper.