DisclosureLens
HackingFinancial ServicesFinanceData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMedium

Massachusetts Mutual Life Insurance Company

bd_61b576c710cd4dd6 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 23, 2023

Filed

Jul 19, 2023

To disclose

26 days

Affected · nationwide

2422 in this filing

Linked

3 filings

Confidence

65%
Full breach record for Massachusetts Mutual Life Insurance Company →48 incidents on file

Massachusetts Mutual Life Company ("MassMutual") reported an external system breach that occurred on May 29, 2023, and was discovered on June 23, 2023. The breach impacted 242 individuals, compromising their names and Social Security numbers. Affected individuals were notified on July 17, 2023, and offered 24 months of credit monitoring services through Kroll.

Maine clockDiscovered Jun 23, 2023 → Filed with AG Jul 19, 202326d ✓ ME AG ≤30d26 days discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 25 days
discovery → filing · 26 days

May 29, 2023

Begins

Jun 23, 2023

Discovered

Jul 19, 2023

Filed

vs. sector median

5 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 3 states

View merged incident ↗
Indiana State AGJul 17 · first
Massachusetts State AG+2d
Maine State AG+2d · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.