HackingFinancial ServicesFinanceCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

Sentinel Security Life Insurance Company

bd_7dc606c04064a1cc · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 15, 2025

Filed

Dec 30, 2025

To disclose

37 weeks

Affected

Not disclosed

Linked

5 filings

Confidence

64%

Full breach record for Sentinel Security Life Insurance Company →

Sentinel Security Life Insurance Company and Atlantic Coast Life Insurance Company disclosed that an unauthorized actor accessed their computer systems between April 7 and April 15, 2025. The incident was discovered on April 15, 2025. Affected data may include names, Social Security numbers, financial account information, dates of birth, and medical/health insurance information. The companies secured their environment, isolated systems, notified law enforcement, and offered credit monitoring services to affected individuals.

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California clockDiscovered Apr 15, 2025 → Notified Dec 30, 2025259d ✗ CA 60-day late37 weeks discovery → filing

Incident timeline

undetected · 8 days

discovery → filing · 37 weeks / 259 days

Apr 7, 2025

Begins

Apr 15, 2025

Discovered

Dec 30, 2025

Filed

vs. sector median

+29 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Nebraska State AGbd_379fab7713473e3e2025-12-30Verified
New Hampshire State AGbd_cfd3298946a9660a2025-12-30Verified
Montana State AGbd_dec7091fc45e2ef32025-12-30Verified
Iowa State AGbd_ea0923490f6560062025-12-30Verified

Name: Sentinel Security Life Insurance Company
norm: sentinel security life insurance

Name: Sentinel Security Life Insurance Company
norm: sentinel security life insurance
Industry: Financial Servicesllm

Discovered: Apr 15, 2025
Breach occurred: Apr 7, 2025 – Apr 15, 2025
Undetected for: 8 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 30, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified federal law enforcementNotifying applicable regulatory authorities

During the incident: Took steps to secure their environment
Launched an investigation to determine the nature and scope of the incident
Isolated relevant systems
Initiated incident response procedures
Notified federal law enforcement regarding this incident
Notifying applicable regulatory authorities
Offered complimentary access to credit monitoring and identity restoration services through IDX
Changes made: Reviewing their policies, procedures, and processes related to the storage of, and access to, personal information to reduce the likelihood of a similar future incident
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 37 weeks(259 days from discovery to filing)
Compliance flags: CA 60-day late · 259d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Apr 15, 2025
→ Notified: Dec 30, 2025
259d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Apr 15, 2025 → Notified: Dec 30, 2025	259d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Nebraska State AGDec 30 · first

New Hampshire State AGDec 30 · first

Montana State AGDec 30 · first

Iowa State AGDec 30 · first

California State AGDec 30 · first · 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.

Source URL: https://oag.ca.gov/ecrime/databreach/reports/sb24-616403
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 30, 2025
Raw hash: 488de2046d3de86b3ac2eda79942403b4e4e8d2b65adfef45b46ae37130fea65

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entitySentinel Security Life Insurance Company

Victim entitySentinel Security Life Insurance Company

Incidentdiscovered Apr 15, 2025

Stated responseTook steps to secure their environment

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov