Social EngineeringHealthcareFinancial ServicesHealthcarePhishingStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)PHIMediumContained

Guarantee Trust Life Insurance Company

bd_861cc8952214aeef · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 23, 2023

Filed

Oct 20, 2023

To disclose

8 weeks

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Guarantee Trust Life Insurance Company →

Guarantee Trust Life Insurance Company notified Montana residents of a data breach affecting personal and protected health information (SSN, DOB, medical info). Unauthorized access to an employee email account occurred on July 12, 2023, following suspicious activity identified on August 23, 2023. The company engaged forensic investigators and offered identity protection services.

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Incident timeline

undetected · 42 days

discovery → filing · 8 weeks / 58 days

Jul 12, 2023

Begins

Aug 23, 2023

Discovered

Oct 20, 2023

Filed

vs. sector median

4 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_2e077f7c5736c9c52023-10-23 · +3dVerified

Name: Guarantee Trust Life Insurance Company
norm: guarantee trust life insurance

Name: Guarantee Trust Life Insurance Company
norm: guarantee trust life insurance
Industry: HealthcarellmFinancial Servicesllm

Discovered: Aug 23, 2023
Breach occurred: Jul 12, 2023
Undetected for: 42 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 23, 2023
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Initial access: phishing_link

During the incident: Launched an investigation into the nature and scope of this incident
Took steps to secure our email environment
Engaged an independent cybersecurity forensics team
Conducted a review of the affected mailbox
Implemented measures to further enhance the security of our email environment
Provided employees with additional training regarding email security
Offered complimentary identity protection services through IDX
Changes made: Implemented measures to further enhance the security of our email environment
Provided employees with additional training regarding email security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(58 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Montana State AGOct 20 · first · this page

Indiana State AG+3d

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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-785.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 20, 2023
Raw hash: dfc9980992682467429876f7397da692fbc1d4740a378280f19d96fcd6b27b44

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityGuarantee Trust Life Insurance Company

Victim entityGuarantee Trust Life Insurance Company

Incidentdiscovered Aug 23, 2023

Stated responseLaunched an investigation into the nature and scope of this incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov