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Confirmed7 filings · 4 statesUnverified claimConfirmedEnforcedcritical sensitivity

Merged incident · 7 filings

Massachusetts Mutual Life Insurance Company — October 2023 breach

Clustered 7 filings across 4 jurisdictions · filing window Mar 21, 2024 → Apr 26, 2024. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

7 filings

States

Affected · reported

11,744

First → last filing

Mar 21, 2024 → Apr 26, 2024

Merge confidence

100%

incident inc_353784c9c4144137 · merged by deterministic · confidence 100%

Part of the INFOSYS MCCAMISH SYSTEMS, LLC supply-chain incident (2024) — at least 20 organizations filed notifications naming this third party.

Confirmed breach. Merged as one breach: 7 regulatory filings. The filing describes malware. Intrusion Oct 29, 2023–Nov 2, 2023, discovered Nov 6, 2023 — the first regulatory filing landed 136 days later. 11,744 individuals reported across the linked filings. Data reported: Government ID, Minor, Identity (basic), and 1 more. Notifications rolled out on a 36-day schedule across 7 filings beginning Mar 21, 2024. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

136days

Discovered → first regulatory filing

Filing span

36days

Time between earliest and latest filing

Not recorded for this incident

Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.

Regulatory clocksMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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