✅ Official notice on file. Frost Bank filed this data breach notice with the California Attorney General on May 20, 2026. Compare it with the letter you received: the official copy is linked below.
Frost Bank reported a data breach caused by unauthorized access to one or more employee email accounts. The information involved includes Social Security number, phone number, home address.
Key facts
| Incident type | Email account compromise |
|---|---|
| Data exposed | Social Security number, Phone number, Home address |
| Reported to California AG | May 20, 2026 |
| Company helpline | 1-844-593-8461 |
Free credit monitoring
Frost Bank is offering 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
- Freeze your credit for free at Equifax, Experian and TransUnion, and request an IRS Identity Protection PIN at irs.gov to block fraudulent tax returns in your name.
- Be wary of calls or texts that mention this incident and ask for codes or payment.
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the Frost Bank helpline at 1-844-593-8461 if you have questions about your letter.
Other recent data breaches
- Citizens Bank data breach
- The Money Store data breach
- American Family Connect Insurance Company data breach
- Financial Administrative Support Services data breach
- NSE Insurance Agencies data breach
Source: notification letter and filing submitted by Frost Bank to the California Attorney General. BreachLetter is not affiliated with Frost Bank. Details extracted from the official letter; always follow the instructions in your own copy.