MalwareProfessional ServicesProfessional ServicesRansomwareRansom DemandedData EncryptedDelayed DiscoveryLow
Hamilton Construction Company
bd_702357320a487dee · schema v1 · pii pii-v1
Full breach record for Hamilton Construction Company →Hamilton Construction Company, a business sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2025-06-19 and filed notice on 2025-11-12. 610 Washington residents were affected. 146 days elapsed between awareness and notification. 0 days to identify the breach. 0 days to contain the breach.
Washington clock✗ WA AG >90d21 weeks 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.
This filing is one of 3 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (2) · sorted by filing gap
- bd_4e6c6d46de10a078Montana State AGfiled 2025-11-12Candidate
- bd_37032daff42f3babOregon State AGfiled 2025-12-15(33d gap)Verified
Source provenance
- Source URL
- https://data.wa.gov/resource/sb4j-ca4h.json?id=20733
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Nov 12, 2025
- Raw hash
- 30fedc58f1dd1f24ed3f4d019a3f81c427738a03162c4311cb0a9a4307f91839
Reporting entity
- Name
- Hamilton Construction Companynorm: hamilton construction
Victim entity
- Name
- Hamilton Construction Companynorm: hamilton construction
- Industry
- Professional Servicesllm
Incident
- Discovered
- Jun 19, 2025
- Materiality determined
- —
- Notification sent
- —
- Affected individuals
- 610
- Data types
- —
- Attack vector
- Ransomware
- Threat actor
- ExternalFinancial
Compliance
- Time to disclose
- 21 weeks(146 days from discovery to filing)
- Compliance flags
- WA AG >90d
- 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.
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.