✅ Official notice on file. Corporation Service Company filed this data breach notice with the California Attorney General on Aug 13, 2026. Compare it with the letter you received: the official copy is linked below.
Corporation Service Company reported a data breach caused by unauthorized access to its computer network.
Key facts
| Unauthorized access | Aug 10, 2025 – Aug 25, 2025 |
|---|---|
| Discovered | Jul 15, 2026 |
| Incident type | Network intrusion |
| Letter sent | Aug 13, 2026 |
| Reported to California AG | Aug 13, 2026 |
| Company helpline | 1-866-898-4668 |
Free credit monitoring
Corporation Service Company is offering 12 months of Cyberscout (TransUnion) at no cost to people who received the letter. Enroll at bfs.cyberscout.com/activate 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 Corporation Service Company helpline at 1-866-898-4668 if you have questions about your letter.
Timeline
- Aug 10, 2025 — Unauthorized access begins
- Jul 15, 2026 — Corporation Service Company discovers the incident
- Aug 13, 2026 — Notification letters sent
- Aug 13, 2026 — Breach reported to the California Attorney General
Previous breaches at Corporation Service Company
- May 17, 2018 — Username / password (notice)
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 Corporation Service Company to the California Attorney General. BreachLetter is not affiliated with Corporation Service Company. Details extracted from the official letter; always follow the instructions in your own copy.