HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDHighContained

Teamsters Local Union No. 763

bd_947fc5c5d7847bad · schema v1 · pii pii-v1

Severity

High

Discovered

Jun 16, 2025

Filed

Jul 15, 2025

To disclose

29 days

Affected

1,713state residents only

Confidence

69%

Full breach record for Teamsters Local Union No. 763 →

Teamsters Local Union No. 174 disclosed a cyber incident discovered on June 16, 2025, where an unauthorized third party accessed files on its server. The breach potentially exposed names, dates of birth, and Social Security numbers of 1,713 Washington residents. The union engaged experts, secured systems, and offered 12 months of credit monitoring.

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Washington clock✓ WA AG ≤30d29 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

discovery → filing · 29 days

Jun 16, 2025

Discovered

Jul 15, 2025

Filed

vs. sector median

14 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1,713 affectedView incident

Name: Teamsters Local Union No. 763
norm: teamsters local union no 763
Industry: Non-Profit/Charity

Name: Teamsters Local Union No. 763
norm: teamsters local union no 763
Industry: Non-Profit/Charity
Industry: Professional Servicesllm

Discovered: Jun 16, 2025
Materiality determined: —
Notification sent: Jul 15, 2025
Affected individuals: 1,713state-resident count only
Data types: Identity (basic)Government ID
Data elements: NameSocial Security numberDate of birth
WA-stated cause: Cyberattack
WA-stated duration: lifecycle Unknowndexposure Unknownd
WA-stated discovery: Found after the fact
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Notified Washington Attorney General
Initial access: valid_credentials

During the incident: Immediately took steps to secure its systems
Engaged with experts to assist in the investigation and remediation of this incident
Investing in new and improved hardware systems
Enhancing our security and monitoring protocols
Working to improve all facets of our cyber security moving forward
Contracted with ID Resolution to offer our current active members Identity Management and Identity Theft services
Extend 12 months of free credit monitoring services to everyone
Changes made: Investing in new and improved hardware systems
Enhancing our security and monitoring protocols
Working to improve all facets of our cyber security moving forward
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 days(29 days from discovery to filing)
Compliance flags: WA AG ≤30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA34000.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 15, 2025
Raw hash: 3bd890e68aaf0dad10ff278cbead532febc462b95417dec937a592c26f548b24

Reporting entityTeamsters Local Union No. 763

Victim entityTeamsters Local Union No. 763

Incidentdiscovered Jun 16, 2025

Stated responseImmediately took steps to secure its systems

ComplianceWA AG ≤30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com