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City of Foster City data breach

Incident readout

Company
City of Foster City
Reported to
California Attorney General
Filed
July 13, 2026
People affected
Not stated in the filing
Incident type in filing
Not stated
Our review
Investigation Open

Was this a ransomware attack?

The filing does not say ransomware was involved. We do not label an incident ransomware unless the company’s report says so. Whatever the cause, the steps to protect yourself and the legal question are the same.

What we know

The City of Foster City is a municipal government entity responsible for providing essential public services to its residents and managing local administrative operations. As a government agency, the City collects and maintains sensitive personal information, including identification records, tax-related data, utility account details, and employment information for its staff. In 2026, the City of Foster City officially reported a data breach to the California Attorney General, confirming that unauthorized access to its systems occurred. If you received a data breach notification letter from the City, it indicates that your personal information may have been compromised during this incident. This notice is intended to inform you of the event and provide guidance on the steps you should take to protect your identity and financial security.

See every breach reported in California or read what to do after a ransomware attack.

Other breaches reported in California

Attorney advertising. This page reflects a public regulator filing; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.