Mark Thomas Data Breach (2025): What Was Exposed & Free Credit Monitoring

✅ Official notice on file. Mark Thomas filed this data breach notice with the California Attorney General on Mar 17, 2025. Compare it with the letter you received: the official copy is linked below.

View the official notice · Read the letter (PDF)

Mark Thomas reported a data breach caused by unauthorized access to its computer network. The information involved includes financial account / bank info.

Key facts

Discovered Feb 19, 2025
Incident type Network intrusion
Data exposed Financial account / bank info
Letter sent Mar 17, 2025
Reported to California AG Mar 17, 2025
Company helpline 1-800-771-7755

Free credit monitoring

Mark Thomas is offering 12 months of Cyberscout (TransUnion) at no cost to people who received the letter.

What to do now

  1. Call your bank, ask about extra monitoring or a new account number, and review statements for small unknown charges.
  2. Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
  3. Call the Mark Thomas helpline at 1-800-771-7755 if you have questions about your letter.

Timeline

  • Feb 19, 2025 — Mark Thomas discovers the incident
  • Mar 17, 2025 — Notification letters sent
  • Mar 17, 2025 — Breach reported to the California Attorney General

Other recent data breaches

Source: notification letter and filing submitted by Mark Thomas to the California Attorney General. BreachLetter is not affiliated with Mark Thomas. Details extracted from the official letter; always follow the instructions in your own copy.