Williams Accountancy Corporation

Williams Accountancy Corporation notified California AG on Mar 4, 2026 of a data breach, which occurred on Dec 26, 2025. Data exposed: Social Security number, Financial / bank account, Date of birth, Name.

Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization: Williams Accountancy Corporation
Source: California AG · source record
Date reported: Mar 4, 2026
Date(s) of breach: Thursday, December 25, 2025Friday, December 26, 2025
Residents affected: Not published by this source
Data exposed: Social Security number Financial / bank account Date of birth Name
Notice letter: Sample notice (PDF)
Discovered: Dec 30, 2025, as stated in the letter
"On December 30, 2025, we discovered that an unauthorized third party had gained access to our network."
Days to notice: 64 days from discovery (Dec 30, 2025) to the California record (Mar 4, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter: credit or identity monitoring through Experian
Third party: The letter attributes the incident to a vendor or service provider
First seen by BreachTally: 2026-10-30 15:28 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

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Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.