HackingData ExfiltratedCustomer Data InvolvedIDENTITY_BASICIDENTITY_GOVERNMENTFINANCIAL_ACCOUNTMediumContained
Williams Accountancy Corporation
bd_8b892c779a04ed23 · schema v1 · pii pii-v1
Full breach record for Williams Accountancy Corporation →Williams Accountancy Corporation discovered on December 30, 2025, that an unauthorized third party accessed its network on December 25-26, 2025, acquiring files containing names, dates of birth, Social Security numbers, and bank account numbers. The company engaged forensic investigators, contained the incident, and offered credit monitoring to affected individuals.
Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident
Source provenance
- Source URL
- https://oag.ca.gov/ecrime/databreach/reports/sb24-619635
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Jan 1, 2026
- Raw hash
- b668df8dcf1124739aed66af7ff60b80f85b2ff922a9cfbd4efb1c84c4318cee
Reporting entity
- Name
- Williams Accountancy Corporationnorm: williams accountancy
Victim entity
- Name
- Williams Accountancy Corporationnorm: williams accountancy
Incident
- Discovered
- Dec 30, 2025
- Materiality determined
- —
- Notification sent
- —
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASICIDENTITY_GOVERNMENTFINANCIAL_ACCOUNT
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
- Threat actor
- External
Compliance
- Time to disclose
- 2 days(2 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.