We are investigating a breach of customer data impacting Liberty Mutual.
Posted on May 08, 2026
Overview of the Liberty Mutual Data Breach
Barnow and Associates, P.C., a leading data breach litigation law firm, is investigating a recent cybersecurity incident at Liberty Mutual. The Everest ransomware group claims to have stolen over 108 GB of data, including policyholder information.
If you received a data breach notification from Liberty Mutual, our attorneys are here to help you understand your legal options.
Contact us today to discuss your rights and explore potential claims. Fill out our contact form or call us at (312) 621-2000.
About Liberty Mutual
Liberty Mutual is a major diversified global insurance company based in Boston, Massachusetts, offering a wide range of personal and commercial insurance products, including auto, homeowners, workers’ compensation, and more.
Details of the Data Breach
The Everest ransomware group claimed responsibility for the breach in early May 2026, stating they stole more than 108 gigabytes of data. Liberty Mutual has acknowledged investigating an incident involving a third-party vendor and has notified law enforcement. The company is still assessing the full scope of the breach.
According to claims by the threat actor, the following types of information may have been exposed:
- policyholder personal information,
- financial and insurance-related records.
Liberty Mutual has begun the process of notifying affected individuals.
What to Do If You Received a Data Breach Notification
If you were notified about the Liberty Mutual data breach, you may be eligible to join a class action lawsuit. Contact Barnow and Associates, P.C. to discuss your legal rights. Complete our contact form below or reach us at (312) 621-2000.
Steps to Protect Your Personal Information
To safeguard your data after the Liberty Mutual breach, consider the following steps:
- Review the Breach Notification: Carefully read the notice from Liberty Mutual and retain it for your records.
- Enroll in Free Monitoring Services: If offered, consider signing up for complimentary credit or identity monitoring to detect suspicious activity.
- Update Passwords: Change passwords for online accounts, using strong, unique combinations.
- Monitor Financial Accounts: Regularly check bank and credit card statements for unauthorized transactions.
- Check Your Credit Report: Look for signs of identity theft by reviewing your credit history at AnnualCreditReport.com.
Potential Legal Outcomes for Affected Individuals
The Liberty Mutual data breach may lead to class action lawsuits due to inadequate cybersecurity measures. Affected individuals could seek compensation for:
- Costs of credit monitoring or identity theft protection
- Unauthorized charges or financial losses
- Time and effort spent addressing the breach
- Other non-financial harms
Our firm has a proven track record in data breach litigation, securing significant settlements for clients. Learn more about our past case results.
How Barnow and Associates, P.C. Can Help
Barnow and Associates, P.C. is dedicated to holding companies accountable for failing to protect consumer data. By joining a class action lawsuit, you may recover compensation for damages while advocating for stronger data security practices.
You may be eligible for recoveries related to:
- Privacy Violations: Compensation for unauthorized access to your personal information
- Mitigation Efforts: Reimbursement for time and resources spent addressing the breach
- Financial Losses: Recovery for direct costs, such as fraudulent charges
- Non-Financial Harms: Damages for emotional distress or inconvenience
Contact us today to verify your eligibility and explore your legal options. Call (312) 621-2000 or fill out our contact form.
