California Casualty Indemnity Exchange, part of the California Casualty Group, has notified individuals that an unauthorized person gained access to its IT network between September 2 and September 8, 2025, and copied certain files during that window. This falls under a hacking or system intrusion, and the company says it isolated affected systems, brought in a third-party cybersecurity firm to investigate, and reported the incident to law enforcement. On November 5, 2025, the company completed its review of the copied files and determined that at least one file contained information belonging to the recipient of the letter.
The notification letter is addressed to an individual, and the version provided to BreachLetter does not include a total count of how many people were affected company-wide. If you received this letter, it means your file was among those the company identified as containing your information after its file-by-file review.
What information was exposed?
- The specific category of personal data involved is not spelled out in the copy of this letter available to us — the notification uses a placeholder field for the exact data element rather than naming it directly.
- The company’s decision to offer a two-year Experian IdentityWorks membership with credit monitoring and $1 million in identity theft insurance suggests the exposed information may include sensitive identifiers, but we won’t guess beyond what the letter states.
- If you want to confirm exactly what of yours was involved, contact the company at the number below and reference the incident.
California Casualty is offering a complimentary two-year membership to Experian IdentityWorksSM, which includes credit monitoring, identity restoration assistance, and $1 million in identity theft insurance. To enroll, visit https://www.experianidworks.com/credit and enter the Activation Code printed in your individual letter before the enrollment deadline stated there (5:59 p.m. Central Time on that date). For enrollment help or identity restoration assistance, call Experian at 1-877-288-8057 and have the engagement number from your letter ready.
What should you do now?
- Enroll in the free Experian IdentityWorks membership using the activation code and deadline in your letter — it costs nothing and won’t affect your credit score.
- Review your credit reports and account statements regularly for unfamiliar activity, and pull your free annual credit report from all three bureaus at annualcreditreport.com.
- Consider placing a free fraud alert or security freeze on your credit files with Equifax, Experian, and TransUnion, especially since the exact data exposed hasn’t been detailed to you.
- Since sensitive personal or financial data may be involved, consider signing up for a service like Aura or LifeLock, which can alert you if your information appears elsewhere.
- If you spot signs of fraud, contact Experian’s Identity Restoration specialists directly, even before formally enrolling, and file a report with local law enforcement or the FTC at identitytheft.gov.
- Watch for phishing emails or calls that reference this breach — scammers sometimes use real incidents to trick people into giving up more information.
If you have questions, California Casualty can be reached at 1-844-354-7528, Monday through Friday, 6:00 a.m. to 3:30 p.m. Pacific Time.