Commonwealth Trust Company Data Breach Lawsuit Investigation
Was your Social Security number or medical information compromised by Commonwealth Trust Company? A single email-account intrusion has put highly sensitive data at risk. Find out how to protect yourself and learn whether you can file a claim for compensation.
What Happened?
According to the breach notice filed with the Massachusetts Attorney General, an unauthorized actor accessed an employee’s Commonwealth Trust Company email account on May 13, 2025. Emails stored in that mailbox contained personal and health-related information. After detecting the suspicious activity, the company:
- Secured the compromised email account
- Engaged digital-forensic specialists to investigate scope and impact
- Completed a detailed review on August 4, 2025
- Began mailing notification letters in September 2025
What Information Was Exposed?
The investigation revealed both personally identifiable information (PII) and protected health information (PHI) were contained in the affected emails, including:
- Full name and date of birth
- Social Security number
- Address and other contact details
- Government-issued identification numbers
- Medical record, treatment, prescription, and billing information
- Insurance or subscriber numbers
- Bank account numbers associated with patient accounts
Even a single element—such as a Social Security number—can enable identity thieves to open fraudulent accounts or file deceptive tax returns. Combined with medical data, the risk of medical identity theft and insurance fraud rises sharply.
Company Response & Free Credit Monitoring
Commonwealth Trust Company is offering affected individuals:
- 24 months of complimentary credit monitoring through Cyberscout (a TransUnion company)
- A single-bureau credit report and credit score
- A dedicated call center to answer breach-related questions
Enrollment instructions are included in each notification letter and must be completed within 90 days of receipt.
Download Official Breach Notice (PDF)Protect Yourself After the Commonwealth Trust Company Breach
Take these proactive measures to reduce your risk of identity theft:
- Activate the free credit-monitoring service immediately
- Review bank, insurance, and medical statements for unauthorized activity
- Request your free annual credit reports from Equifax, Experian, and TransUnion
- Consider placing a fraud alert or credit freeze on your credit files
- Report any suspected identity theft to the FTC at IdentityTheft.gov and local law enforcement
Your Legal Options
If your personal information was exposed, you may be entitled to financial compensation for:
- Out-of-pocket expenses (credit-monitoring fees, lost time, etc.)
- Unauthorized charges or fraudulent accounts
- Future identity-theft risks and emotional distress
Data-breach litigation helps consumers recover losses and pressures companies to strengthen security. Consulting an experienced data-privacy attorney can clarify your eligibility and next steps.
Next Steps to Join the Investigation
- Locate your breach-notification letter and confirm the exposure of your data.
- Document any suspicious activity on credit reports or financial statements.
- Contact a consumer-rights attorney to discuss potential claims.
Frequently Asked Questions
- When did the Commonwealth Trust Company data breach occur?
- The unauthorized access happened on May 13, 2025, and the company completed its review on August 4, 2025.
- What data did Commonwealth Trust Company expose?
- Names, Social Security numbers, dates of birth, medical and insurance details, bank account numbers, and other sensitive identifiers.
- Has Commonwealth Trust Company offered free credit monitoring?
- Yes. Eligible individuals receive 24 months of complimentary credit monitoring and identity-theft assistance through Cyberscout.
- How do I know if I was affected by the Commonwealth Trust Company breach?
- If you receive a mailed notification letter, your information was in the compromised email account. Contact the company’s dedicated hotline with any questions.
- Can I sue Commonwealth Trust Company over this breach?
- Potentially. A class-action investigation is under way, and victims may pursue compensation for losses and increased identity-theft risk.
- What should I do right now?
- Enroll in the free credit monitoring, watch your accounts closely, and seek legal guidance to understand your rights.