✅ Official notice on file. Columbia Bank filed this data breach notice with the California Attorney General on Apr 17, 2026. Compare it with the letter you received: the official copy is linked below.
Columbia Bank reported a data breach. The information involved includes Social Security number, driver's license / state id, financial account / bank info.
Key facts
| Unauthorized access | Oct 2, 2025 – Dec 22, 2025 |
|---|---|
| Discovered | Mar 6, 2026 |
| Data exposed | Social Security number, Driver's license / state ID, Financial account / bank info |
| Reported to California AG | Apr 17, 2026 |
| Company helpline | 1-866-486-7782 |
Free credit monitoring
Columbia Bank is offering 12 months of Experian IdentityWorks 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
- 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.
- Contact your state DMV to ask whether your license number should be replaced, and watch for accounts opened with your ID.
- Call your bank, ask about extra monitoring or a new account number, and review statements for small unknown charges.
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the Columbia Bank helpline at 1-866-486-7782 if you have questions about your letter.
Timeline
- Oct 2, 2025 — Unauthorized access begins
- Mar 6, 2026 — Columbia Bank discovers the incident
- Apr 17, 2026 — Breach reported to the California Attorney General
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 Columbia Bank to the California Attorney General. BreachLetter is not affiliated with Columbia Bank. Details extracted from the official letter; always follow the instructions in your own copy.