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Commonwealth Business Bank was the subject of a data breach notification filed with the CA Attorney General. The AG filing was recorded on December 9, 2025. The breach or discovery date reported in the filing is January 25, 2025.
From the AG filing description
Commonwealth Business Bank operates as a specialized commercial banking institution catering primarily to business owners, corporate clients, and individual depositors across California and beyond. Because of its core financial operations, the bank routinely collects, processes, and stores an extensive volume of highly sensitive consumer and commercial data. This includes detailed banking credentials, loan applications, tax documents, wire transfer instructions, and personally identifiable information required to facilitate everyday financial transactions, asset management, and regulatory compliance. As a regulated financial hub, the institution maintains a vast digital repository of confidential records that make it a prime target for malicious cyber actors seeking to exploit institutional vulnerabilities. In 2025, Commonwealth Business Bank reported a significant security incident to the California Attorney General's office, alerting customers and regulatory authorities to an unauthorized compromise of its network infrastructure. While the exact vector of the attack continues to be evaluated, breaches affecting financial institutions typically involve sophisticated cyberattacks such as ransomware deployments, unauthorized database intrusions, credential stuffing, or vulnerabilities within third-party vendor software utilized for banking operations. These security failures often allow unauthorized third parties to dwell undetected within corporate networks, granting them prolonged access to internal systems containing sensitive customer files and proprietary financial records. The data exposed in financial institution data breaches frequently includes full names, Social Security numbers, dates of birth, bank account and routing numbers, credit scores, and transaction histories. The exposure of this combination of data carries severe, long-term risks for affected individuals. Unlike a stolen credit card that can be easily replaced, compromised Social Security numbers and core banking details cannot be changed. This exposes victims to a heightened risk of devastating identity theft, unauthorized account takeovers, fraudulent loan applications opened in their names, and targeted financial scams that can take years and substantial resources to remediate. As a financial institution entrusted with sensitive consumer data, Commonwealth Business Bank is subject to stringent federal and state legal obligations, most notably the Gramm-Leach-Bliley Act (GLBA) and the California Consumer Privacy Act (CCPA). Under the GLBA, financial institutions are legally mandated to implement rigorous administrative, technical, and physical safeguards to protect customer non-public personal information from unauthorized access and disclosure. The occurrence of a successful data breach strongly suggests a potential failure to maintain adequate security controls, encryption standards, or timely threat-monitoring systems, raising serious questions about whether the bank fulfilled its legal duty of care to its customers. Receiving an official data breach notification letter from Commonwealth Business Bank serves as formal legal acknowledgment that your private information was compromised due to inadequate corporate security measures. Legally, the receipt of this notice establishes the foundation for legal standing to participate in a class action lawsuit aimed at holding the institution accountable for its negligence. Impacted individuals do not need to wait until they suffer actual financial loss or identity theft to pursue legal recourse; the increased risk of future harm and the cost of mandatory protective measures are actionable. Our law firm handles these complex data breach cases on a contingency fee basis, meaning you pay zero out-of-pocket costs and owe no attorneys' fees unless we successfully recover compensation on your behalf.
Under the California Consumer Privacy Act (CCPA), you may have a legal claim against Commonwealth Business Bank if any of the following apply:
Based on the data types reported in this filing:
Your SSN is the master key to your identity. Once exposed, criminals can open new lines of credit, take out loans, or file taxes in your name.
Combined with a name and other leaked data, date of birth helps criminals pass identity verification questions at banks and government agencies.
Common categories of compensation in data breach class actions
Courts recognize that the time spent monitoring accounts, placing credit freezes, and dealing with the aftermath of a breach has real economic value. This category of damages is recoverable even without direct financial loss.
Professional credit monitoring services cost $10–$40 per month. Identity theft restoration services, if needed, can cost hundreds of hours and thousands of dollars. Courts have awarded these costs as direct damages in SSN breach cases.
Direct financial losses resulting from the breach — unauthorized charges, fraudulent transfers, or fees incurred through fraud — are recoverable as compensatory damages. Banks may reverse some charges; a class action recovers the remainder and associated costs.
Several state data breach laws provide for statutory minimum damages — fixed amounts recoverable per affected individual regardless of actual loss. These provisions exist specifically to make legal action viable for victims who have not yet experienced direct harm.
Note: an attorney general breach filing does not by itself establish a settlement fund, a payment amount, or a claim deadline. If an official settlement notice is later issued, rely on that notice for payment details and deadlines.
No. Under California Consumer Privacy Act (CCPA) and federal law, the unauthorized exposure of your personal data — regardless of whether it has been actively misused — can be sufficient grounds for a claim. The breach itself is the injury.
Nothing. The Law Office of David S. Harris handles data breach cases on contingency — you pay zero upfront and owe nothing unless compensation is recovered.
Immediately place a free credit freeze at all three bureaus (Equifax, Experian, TransUnion). A freeze blocks new accounts from being opened in your name. Then file a complaint with the FTC at IdentityTheft.gov and contact our office — SSN exposure is one of the most serious breach types.
Banks may reverse fraudulent charges, but they are not obligated to compensate you for time lost, stress, or indirect damages. A class action claim against the breached company can recover those additional categories of harm.
Statutes of limitations for data breach claims vary by state but typically run 2–4 years. Depending on when you learned of the breach, you may still have time. Contact our office for a free eligibility review — there is no cost to find out.
Accepting free credit monitoring from Commonwealth Business Bank does not waive your right to pursue legal action unless you signed a specific release waiving claims. In most cases, victims who accepted monitoring can still file.
Not necessarily. Many data breach victims are never notified directly. If your personal information was held by Commonwealth Business Bank during the relevant period, you may still qualify even without receiving a letter. A free eligibility review can confirm your status.
Applicable State Law
This breach was reported under the California Consumer Privacy Act (CCPA), which mandates notification and establishes your right to seek damages.
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