Massachusetts Mutual Life Insurance Company

Massachusetts Mutual Life Insurance Company notified California AG on Aug 29, 2017 of a data breach, which occurred on Aug 17, 2017. Data exposed: Social Security number, Financial / bank account, Date of birth, Phone number, Postal address, Name.

Organization: Massachusetts Mutual Life Insurance Company
Source: California AG · source record
Date reported: Aug 29, 2017
Date(s) of breach: Thursday, August 17, 2017
Residents affected: Not published by this source
Data exposed: Social Security number Financial / bank account Date of birth Phone number Postal address Name
Notice letter: Sample notice (PDF)
First seen by BreachTally: 2026-10-30 16:17 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

Other filings by Massachusetts Mutual Life Insurance Company

Organization	Source	State	Reported	Residents affected	Data exposed
Massachusetts Mutual Life Insurance Company	California AG	CA	Mar 21, 2024	Not published	In the letter (PDF)
Massachusetts Mutual Life Insurance Company	California AG	CA	Dec 16, 2013	Not published	Social Security numberFinancial / bank accountDate of birthUsernames / passwords+4
Massachusetts Mutual Life Insurance Company	California AG	CA	Oct 4, 2013	Not published	In the letter (PDF)
Massachusetts Mutual Life Insurance Company	California AG	CA	Jun 4, 2013	Not published	Social Security numberFinancial / bank accountDate of birthUsernames / passwords+4
Massachusetts Mutual Life Insurance Company	California AG	CA	Mar 6, 2013	Not published	Social Security numberFinancial / bank accountMedical / health informationHealth insurance+4
Massachusetts Mutual Life Insurance Company	California AG	CA	Jul 31, 2012	Not published	Social Security numberFinancial / bank accountDate of birthUsernames / passwords+4

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.