Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Massachusetts Mutual Life Insurance

9 breaches16K affected in allInsurance

Breach, details not statedExposed names, Social Security numbers and health records. Reported to the Indiana AG.272 affectedFinanceUSDec 11, 2025Breach, details not statedBreach notice filed with the California AG, details not stated.12K affectedInsuranceUSApr 27, 2023Breach, details not statedBreach notice filed with the Indiana AG, details not stated.29 affectedInsuranceUSNov 19, 2021Breach, details not statedBreach notice filed with the Indiana AG, details not stated.4 affectedInsuranceUSJun 30, 2020Breach, details not statedBreach notice filed with the Indiana AG, details not stated.2 affectedInsuranceUSOct 8, 2018Breach, details not statedBreach notice filed with the California AG, details not stated.2,034 affectedInsuranceUSMay 5, 2017Breach, details not statedBreach notice filed with the Indiana AG, details not stated.2,274 affectedInsuranceUSMar 19, 2015Breach, details not statedBreach notice filed with the California AG, details not stated.InsuranceUSMar 6, 2013Breach, details not statedBreach notice filed with the California AG, details not stated.InsuranceUSJul 31, 2012
About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

records2026-09-25
Massachusetts Mutual Life Insurance, 2015-03-192274
Added2026-09-25
Massachusetts Mutual Life Insurance, 2015-03-19
disclosed2026-09-25
Massachusetts Mutual Life Insurance, 2017-05-052017-05-05
records_basis2026-09-25
Massachusetts Mutual Life Insurance, 2017-05-05organization
records2026-09-25
Massachusetts Mutual Life Insurance, 2017-05-052034
records2026-09-25
Massachusetts Mutual Life Insurance, 2018-10-082
disclosed2026-09-25
Massachusetts Mutual Life Insurance, 2018-10-082018-10-08
Added2026-09-25
Massachusetts Mutual Life Insurance, 2018-10-08
Added2026-09-25
Massachusetts Mutual Life Insurance, 2020-06-30
Added2026-09-25
Massachusetts Mutual Life Insurance, 2021-11-19
source2026-09-25
Massachusetts Mutual Life Insurance, 2023-04-27https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/D-BYear-to-Date-Report-2023.pdf
records_basis2026-09-25
Massachusetts Mutual Life Insurance, 2023-04-27organization
records2026-09-25
Massachusetts Mutual Life Insurance, 2023-04-2711744
records2026-09-25
Massachusetts Mutual Life Insurance, 2025-12-11272
disclosed2026-09-25
Massachusetts Mutual Life Insurance, 2025-12-112025-12-11
records2026-09-25
Massachusetts Mutual Life Insurance, 2025-12-11200
records_basis2026-09-25
Massachusetts Mutual Life Insurance, 2025-12-11organization
records2026-09-25
Massachusetts Mutual Life Insurance, 2025-12-1129
disclosed2026-09-25
Massachusetts Mutual Life Insurance, 2025-12-112026-02-13
occurred2026-09-25
Massachusetts Mutual Life Insurance, 2025-12-112025-04-07
Added2026-09-25
Massachusetts Mutual Life Insurance, 2025-12-11
Added2026-09-25
Massachusetts Mutual Life Insurance, 2012-07-31
disclosed2026-09-25
Massachusetts Mutual Life Insurance, 2013-03-062013-03-06
disclosed2026-09-25
Massachusetts Mutual Life Insurance, 2013-03-062013-06-04
disclosed2026-09-25
Massachusetts Mutual Life Insurance, 2013-03-062013-10-04
Added2026-09-25
Massachusetts Mutual Life Insurance, 2013-03-06
Added2026-09-25
Massachusetts Mutual Life Insurance, 2017-05-05
disclosed2026-09-25
Massachusetts Mutual Life Insurance, 2023-04-272023-04-27
Added2026-09-25
Massachusetts Mutual Life Insurance, 2023-04-27
Added2026-09-25
Massachusetts Mutual Life Insurance