Clustered 14 filings across 7 jurisdictions · filing window Feb 7, 2024 → Mar 8, 2024. View entity profile → Other incidents for this victim →
incident inc_6b5fb591615b4b4a · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
CA IN ME MT NH OR WA
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
all State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
14 filings across 7 jurisdictions · Feb 7, 2024 – Mar 8, 2024 · 3 milestones
Oct 29, 2023 → Nov 2, 2023
When the intrusion reportedly occurred, per the linked filings
Nov 2, 2023
Reported by CALIFORNIA AG filings
Jan 24, 2024 – Feb 5, 2024
Earliest reported discovery Jan 24, 2024
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.
Jan 24, 2024
Reported by MAINE AG filing
Jan 29, 2024
Reported by MAINE AG filing
Feb 5, 2024
Reported by MAINE AG, WASHINGTON AG, OREGON AG filings
The Northwestern Mutual Life Insurance Company reported a data breach to the Montana Attorney General. The breach was reported on 2024-02-07. The breach occurred on 1/24/2024. 1 Montana residents were affected.
Affected (this filing): 1
The Northwestern Mutual Life Insurance Company reported a data breach to the Indiana Attorney General. The breach occurred on 2023-10-29 and was reported on 2024-02-07. 18 Indiana residents were affected. 887 individuals affected in total.
Affected (this filing): 887
The Northwestern Mutual Life Insurance Company reported a data breach impacting 887 individuals that occurred due to a breach at a third-party service provider. The incident took place between October 29, 2023, and November 2, 2023, and was discovered on January 24, 2024. Affected individuals were notified on February 7, 2024, and offered 12 months of identity protection services through Experian.
Affected (this filing): 887
The Northwestern Mutual Life Insurance Company reported a data breach to the Indiana Attorney General. The breach occurred on 2023-10-29 and was reported on 2024-02-16. 549 Indiana residents were affected. 24,518 individuals affected in total.
Affected (this filing): 24,518
The Northwestern Mutual Life Insurance Company reported a data breach affecting 28 Maine residents. The breach occurred at a third-party service provider between October 29, 2023, and November 2, 2023. The incident was discovered on January 29, 2024. The company has offered 12 months of identity theft protection services through Experian to those affected.
Affected (this filing): 28
Newport Group, Inc. notified participants of a ransomware event affecting its third-party vendor, Infosys McCamish Systems (IMS), on November 2, 2023. The breach date is listed as October 29, 2023. IMS processes transactions for non-qualified deferred compensation plans. While IMS stated there is no evidence that participant information (name, address, date of birth, SSN) was impacted, Newport offered one year of complimentary identity protection through Experian as a precaution. Unit 42 and EY were engaged for security validation and e-discovery. The IMS environment was restored and hardened.
The Northwestern Mutual Life Insurance Company reported a data breach to the Montana Attorney General. The breach was reported on 2024-02-16. The breach occurred on 1/29/2024. 103 Montana residents were affected.
Affected (this filing): 103
Northwestern Mutual notified customers of a cybersecurity incident at its service provider, Infosys McCamish Systems (IMS), on or around November 2, 2023. An unauthorized party gained access to IMS systems. IMS disabled systems, retained forensic and e-discovery firms, and restored services with enhanced controls. No evidence of continued access was found. Northwestern Mutual's internal systems were not compromised. Identity monitoring services were offered to affected individuals.
The Northwestern Mutual Life Insurance Company reported a data breach to the Montana Attorney General. The breach was reported on 2024-02-29. The breach occurred on 2/5/2024. 389 Montana residents were affected.
Affected (this filing): 389
The Northwestern Mutual Life Insurance Company reported a data breach affecting 316 Maine residents due to a security incident at a third-party service provider. The breach occurred between October 29, 2023, and November 2, 2023, and was discovered on February 5, 2024. The company has offered 24 months of credit monitoring and identity theft protection services through Kroll to affected individuals.
Affected (this filing): 316
The Northwestern Mutual Life Insurance Company, a finance sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2024-02-05 and filed notice on 2024-02-29. 1,025 Washington residents were affected. 24 days elapsed between awareness and notification. 99 days to identify the breach. 0 days to contain the breach.
Affected (this filing): 1,025
The Northwestern Mutual Life Insurance Company reported a data breach to the Oregon Attorney General. The breach was reported on 2024-02-29. The breach occurred during 10/29/2023 - 11/2/2023. The breach was discovered on 2/5/2024. 62,656 individuals were affected. Notice was sent on 2/29/2024.
Affected (this filing): 62,656
The Northwestern Mutual Life Insurance Company reported a data breach to the Indiana Attorney General. The breach occurred on 2023-10-29 and was reported on 2024-03-01. 1,397 Indiana residents were affected. 62,656 individuals affected in total.
Affected (this filing): 62,656
State AG filing from New Hampshire for Northwestern Mutual Life Insurance Company dated March 8, 2024. The attachment content is empty; no breach details, dates, or data types are extractable from the provided source.