DisclosureLens
MalwareFinancial ServicesFinanceRansomwareData ExfiltratedData EncryptedSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDMediumContained

The Northwestern Mutual Life Insurance Company

bd_a28e5fee7e8c1b65 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 2, 2023

Filed

Jul 2, 2024

To disclose

35 weeks

Affected

289state residents only

Confidence

66%
Full breach record for The Northwestern Mutual Life Insurance Company →16 incidents on file

Northwestern Mutual filed a supplemental notice with the NH AG regarding a ransomware incident at vendor Infosys McCamish Systems (IMS). Unauthorized access occurred Oct 29-Nov 2, 2023. IMS encrypted systems and exfiltrated data. Northwestern Mutual determined 289 NH residents were impacted. Notification began March 1, 2024, offering credit monitoring.

Incident timeline

undetected · 4 days
discovery → filing · 35 weeks / 243 days

Oct 29, 2023

Begins

Nov 2, 2023

Discovered

Jul 2, 2024

Filed

vs. sector median

+27 wks slower

Part of INFOSYS MCCAMISH SYSTEMS, LLC supply-chain incident (2024) — a supply-chain cascade affecting multiple organizations.View cascade →
Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed289 affectedView incident

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.