✅ Official notice on file. City of Foster City filed this data breach notice with the California Attorney General on Oct 15, 2026. Compare it with the letter you received: the official copy is linked below.
City of Foster City reported a data breach caused by unauthorized access to its computer network.
Key facts
| Unauthorized access | Feb 28, 2026 – Mar 25, 2026 |
|---|---|
| Discovered | Jun 10, 2026 |
| Incident type | Network intrusion |
| Reported to California AG | Oct 15, 2026 |
| Company helpline | 1-877-288-8057 |
Free credit monitoring
City of Foster City is offering 12 months of Kroll at no cost to people who received the letter. Enroll at www.experianidworks.com/3bcredit using the activation code printed on your letter.
What to do now
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the City of Foster City helpline at 1-877-288-8057 if you have questions about your letter.
Timeline
- Feb 28, 2026 — Unauthorized access begins
- Jun 10, 2026 — City of Foster City discovers the incident
- Oct 15, 2026 — Breach reported to the California Attorney General
Other recent data breaches
- Deposition Solutions, LLC data breach
- Mercadien, P.C. CPAs data breach
- Toyo Tire Holdings of Americas Inc. data breach
- STS Aviation Group data breach
- Alma Family Services data breach
Source: notification letter and filing submitted by City of Foster City to the California Attorney General. BreachLetter is not affiliated with City of Foster City. Details extracted from the official letter; always follow the instructions in your own copy.