✅ Official notice on file. Commonwealth Business Bank filed this data breach notice with the California Attorney General on Dec 9, 2025. Compare it with the letter you received: the official copy is linked below.
Commonwealth Business Bank reported a data breach caused by unauthorized access to its computer network.
Key facts
| Unauthorized access | Jan 25, 2025 – Feb 8, 2025 |
|---|---|
| Discovered | Feb 6, 2025 |
| Incident type | Network intrusion |
| Letter sent | Dec 9, 2025 |
| Reported to California AG | Dec 9, 2025 |
| Company helpline | 1-833-918-1110 |
Free credit monitoring
Commonwealth Business Bank is offering 24 months of Experian IdentityWorks at no cost to people who received the letter. Enroll at www.experianidworks.com/1Bcredit using the activation code printed on your letter. Deadline to enroll: Mar 31, 2026.
What to do now
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the Commonwealth Business Bank helpline at 1-833-918-1110 if you have questions about your letter.
Timeline
- Jan 25, 2025 — Unauthorized access begins
- Feb 6, 2025 — Commonwealth Business Bank discovers the incident
- Dec 9, 2025 — Notification letters sent
- Dec 9, 2025 — 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 Commonwealth Business Bank to the California Attorney General. BreachLetter is not affiliated with Commonwealth Business Bank. Details extracted from the official letter; always follow the instructions in your own copy.