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California International Bank Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the California International Bank, N.A. data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About California International Bank, N.A.
California International Bank, N.A. is a community-focused financial institution based in Westminster, California. Founded in 2005, the bank is minority-owned and aims to serve the business and personal banking needs of Southern California’s diverse local communities.
The bank offers a range of services, including commercial and real estate loans, deposit accounts, personal banking products, and business banking solutions. With a small team of around 10 employees, California International Bank, N.A. is known for its localized approach, providing accessible banking products and making lending decisions directly within the community. The bank is regulated by the Office of the Comptroller of the Currency and is a member of the Federal Reserve System.
What Happened?
On Sept. 12, 2024, California International Bank discovered that an unauthorized individual had gained access to a single employee’s email account. The investigation, supported by external cybersecurity professionals, revealed that this access occurred between Sept. 11 and Sept. 12, 2024. After a thorough review, the bank determined on Aug. 29, 2025, that personal information contained in the compromised emails may have been exposed.
Information Exposed:
- Financial account information
- Social Security numbers
The breach was reported to the California and Massachusetts Attorneys General on Sept. 19, 2025. According to the Massachusetts Attorney General, four residents in that state were affected.
Your Rights and Next Steps
If you received a notice about this data breach, it is important to know your rights and the steps you can take to protect yourself. California International Bank, N.A. has offered complimentary credit monitoring and identity restoration services through Experian IdentityWorks. These services are designed to help detect and resolve identity theft.
Here are recommended actions:
- Enroll in the complimentary credit monitoring service offered by Experian IdentityWorks
- Consider placing a one-year fraud alert on credit files with any of the three major credit bureaus (Equifax, Experian, TransUnion)
- Place a security freeze on credit files to prevent unauthorized access or new accounts being opened
- Obtain and review free credit reports from each major credit bureau
- Stay vigilant by regularly reviewing financial account statements and credit reports for any unusual or unauthorized activity
If suspicious activity is noticed, contact the credit bureaus, law enforcement, and the Federal Trade Commission immediately. Victims in certain states also have the right to file a police report and obtain a copy of it.
You May Be Entitled to Compensation
If your information was exposed in the California International Bank, N.A. data breach, you may be eligible for compensation. Lawyers are ready to help individuals affected by this incident understand their rights and pursue possible claims for damages related to the breach.
To find out if you qualify and to take the next step in protecting your rights, complete the below form to join a lawsuit regarding the California International Bank, N.A. data breach.
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