MalwareProfessional ServicesTechnologyProfessional ServicesRansomwareData ExfiltratedTargetedIdentity (basic)MediumContained

Anchor Computer Systems

bd_72aa866bf2fdc1f9 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 12, 2025

Filed

Dec 4, 2025

To disclose

12 weeks

Affected

3,275state residents only

Confidence

70%

Full breach record for Anchor Computer Systems →2 incidents on file

Anchor Computer, Inc. reported a ransomware incident to Washington AG on Dec 4, 2025. Unauthorized access occurred Sept 12, 2025, affecting 3,275 Washington residents. Data included names, addresses, and DOBs. Forensic specialists were engaged and law enforcement notified.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d12 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 · 12 weeks / 83 days

Sep 12, 2025

Begins

Sep 12, 2025

Discovered

Dec 4, 2025

Filed

vs. sector median

6 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed3,275 affectedView incident

Name: Anchor Computer Systems
norm: anchor computer
Domain: anchor.co.uk
Industry: Professional Services

Name: Anchor Computer Systems
norm: anchor computer
Domain: anchor.co.uk
Industry: Professional Services
Industry: Professional ServicesllmTechnologyllm

Discovered: Sep 12, 2025
Breach occurred: Sep 12, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 4, 2025
Affected individuals: 3,275state-resident count only
Data types: Identity (basic)
Data elements: NameDate of birth
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 0dexposure 0d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Reported the incident to law enforcement
Initial access: valid_credentials

During the incident: Engaged third-party forensic specialists to assist with securing the network environment and investigating the extent of any unauthorized activity
Reported the incident to law enforcement
Implemented measures to further enhance the security of our network environment
Changes made: Implemented measures to further enhance the security of our network environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(83 days from discovery to filing)
Compliance flags: WA AG >30d
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/BreachA35772.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 4, 2025
Raw hash: 3db18a9cc0b2548a2a72fa702cea07c7a9ac6a76e0fe9de0804a36adf42f1b44

Reporting entityAnchor Computer Systems

Victim entityAnchor Computer Systems

Incidentdiscovered Sep 12, 2025

Stated responseEngaged third-party forensic specialists to assist with securing the network environment and investigating the extent of any unauthorized activity

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com