HackingTechnologyHealthcareInformationStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDPHIPIIHealth (basic)HighContained

Trusteed Plans Service Corporation

bd_858199e663302c61 · schema v1 · pii pii-v1

Severity

High

Discovered

Dec 26, 2024

Filed

Sep 8, 2025

To disclose

37 weeks

Affected

1,099state residents only

Confidence

70%

Trusteed Plans Service Corporation (TPSC) reported unauthorized access to its computer environment on December 26, 2024. An unauthorized user gained access, potentially exposing names and addresses of 1,099 Washington residents. TPSC engaged forensic investigators, disconnected network access, changed credentials, and offered credit monitoring services.

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Washington clock✗ WA AG >90d37 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 37 weeks / 256 days

Dec 26, 2024

Begins

Dec 26, 2024

Discovered

Sep 8, 2025

Filed

vs. sector median

+18 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1,099 affectedView incident

Name: Skagit County, WA
norm: skagit county wa

Name: Trusteed Plans Service Corporation
norm: trusteed plans service
Industry: TechnologyllmHealthcarellm

Discovered: Dec 26, 2024
Breach occurred: Dec 26, 2024
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1,099state-resident count only
Data types: Identity (basic)PII
Data elements: NameSocial Security numberDate of birthHealth insurance IDMedical information
WA-stated cause: Unauthorized Access
WA-stated duration: lifecycle Unknowndexposure Unknownd
WA-stated discovery: Found after the fact
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified Washington Attorney General
Initial access: valid_credentials

During the incident: Engaged a specialized third-party cybersecurity firm to secure its computer systems and conduct a comprehensive investigation
Disconnected all access to our network
Changed administrative credentials
Restored operations in a safe and secure mode
Enhanced the security measures
Changes made: Enhanced the security measures
Took steps and will continue to take steps to mitigate the risk of future harm
Providing you with access to Single Bureau Credit Monitoring/ Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 37 weeks(256 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

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/BreachA34600.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 8, 2025
Raw hash: 7e7f178037dbc768fb6e8cc5f2d361eda6c94a857dd6e27a442527cc506fed0c

Reporting entitySkagit County, WA

Victim entityTrusteed Plans Service Corporation

Incidentdiscovered Dec 26, 2024

Stated responseEngaged a specialized third-party cybersecurity firm to secure its computer systems and conduct a comprehensive investigation

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com