HackingFinancial ServicesHealthcareFinanceData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)PHIHighContained

Sentinel Security Life Insurance Company

bd_ea0923490f656006 · schema v1 · pii pii-v1

Severity

High

Discovered

Apr 15, 2025

Filed

Dec 30, 2025

To disclose

37 weeks

Affected

1,456state residents only

Linked

5 filings

Confidence

66%

Full breach record for Sentinel Security Life Insurance Company →

Sentinel Security Life Insurance Company and Atlantic Coast Life Insurance Company notified Iowa regulators of a data event affecting 1,456 residents. Unauthorized access occurred between April 7 and April 15, 2025. Data exposed included names, SSNs, driver's licenses, financial accounts, and health information. The companies isolated systems, notified law enforcement, and provided one year of credit monitoring.

J jump to incidentP pin to compareR raw source

Iowa clock✓ IA AG ≤5 bday37 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

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
California State AGbd_7dc606c04064a1cc2025-12-30Candidate
New Hampshire State AGbd_cfd3298946a9660a2025-12-30Verified
Montana State AGbd_dec7091fc45e2ef32025-12-30Verified

Name: Mullen Coughlin LLC
norm: mullen coughlin

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

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: 1,456state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1119 Automated CollectionT1074 Data Staged
Threat actor: External
Regulator citations: Notified federal law enforcement regarding the incidentproviding written notice of this incident to relevant state regulators, as necessarynotifying the three major credit reporting agencies, Equifax, Experian, and TransUnion
Initial access: exploit_public_facing

During the incident: Initiated incident response procedures
Isolated relevant systems
Began an investigation to identify potentially affected individuals
Notified federal law enforcement regarding the incident
Providing access to credit monitoring and identity restoration services for one (1) year, 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
Working to implement additional safeguards and training to their employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 37 weeks(259 days from discovery to filing)
Compliance flags: IA AG ≤5 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Nebraska State AGDec 30 · first

California State AGDec 30 · first

New Hampshire State AGDec 30 · first

Montana State AGDec 30 · first

Iowa 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://www.iowaattorneygeneral.gov/media/cms/12302025_Sentinel_Security_Life_Ins_153E932C19010.pdf
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: e57eff07e52212649f065341f2ace385cc00566b594091c74e4f3875887ef27e

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entitySentinel Security Life Insurance Company

Incidentdiscovered Apr 15, 2025

Stated responseInitiated incident response procedures

ComplianceIA AG ≤5 bday

Extraction provenanceno artifact recorded

Source provenancewww.iowaattorneygeneral.gov