Every public data breach

44 disclosed this week · 26,355 on record

Massachusetts Mutual Life Insurance

Disclosed Apr 27, 202311,744 affectedConfirmed

Official notice

What is known

People affected11,744 (as reported by the organization)
DisclosedApr 27, 2023
HappenedOct 29, 2023
AttackNot stated
Data exposedNot stated
SectorInsurance · US
StatusConfirmed

Sources

Notices filed

Other breaches at Massachusetts Mutual Life Insurance

History of this record
source2026-09-25
empty to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/D-BYear-to-Date-Report-2023.pdfby backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 11744by backfillSource
disclosed2026-09-25
2024-03-21 to 2023-04-27by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about Massachusetts Mutual Life Insurance