Carlysle Engineering Data Breach

Carlysle Engineering, Inc., a New Hampshire-based engineering firm, has disclosed a ransomware attack that may have affected personal information of current and former employees, as well as named beneficiaries. The breach involved human resources data, including W2 reports and scanned driver’s licenses, potentially exposing names, addresses, dates of birth, Social Security numbers, and driver’s license/state-issued ID numbers. Carlysle is offering affected individuals identity protection services and guidance on how to safeguard their information.

Carlysle Engineering Data Breach Investigation

On March 23, 2026, Carlysle discovered that a cybercriminal had launched a ransomware attack on its primary file server, which encrypted affected files. Upon discovery, Carlysle’s IT administrator immediately engaged OCD Tech, LLC, a cybersecurity recovery and investigation firm, along with legal counsel to assess the situation. OCD Tech identified a ransom note and a list of encrypted files, and confirmed that the incident began and ended on March 23, 2026 after security systems were updated and connections were shut down.

Following the containment, Carlysle conducted a thorough review of all impacted files and finalized identification of affected individuals on April 23, 2026. Recommendations from OCD Tech, including firewall updates and enhanced monitoring, have been implemented to reduce the likelihood of future incidents. Notifications to affected individuals were mailed on May 14, 2026.

When Did This Breach Occur?

The ransomware attack occurred on March 23, 2026, and was detected the same day. Affected individuals were notified via first-class mail on May 14, 2026.

What Information Was Breached?

The information potentially accessed includes:

• Name
• Address
• Date of birth
• Social Security number
• Driver’s license number/state-issued ID number

The exact data affected may vary by individual.

What You Can Do

If your information was impacted by this incident, take the following precautions:

1. Enroll in Identity Protection Services: Carlysle is offering 24 months of complimentary identity protection through IDX, which includes CyberScan® monitoring, $1,000,000 insurance reimbursement, and fully managed identity theft recovery services. Enrollment must be completed using the unique code provided in the notification letter.
2. Monitor Accounts and Statements: Review financial and HR-related statements, W2 forms, and other accounts for suspicious activity.
3. Obtain Free Credit Reports: Request one free credit report per year from each of the three major credit bureaus via www.annualcreditreport.com.
4. Place a Fraud Alert or Security Freeze: Consider placing a fraud alert or security freeze on your credit file with Equifax, Experian, and TransUnion to prevent unauthorized accounts.
5. Report Identity Theft: Report any misuse of your information to the Federal Trade Commission at IdentityTheft.gov and contact your financial institutions as necessary.

File a Data Breach Lawsuit Against Carlysle Engineering

Affected individuals may be eligible to recover damages through a class action lawsuit, including compensation for loss of privacy, time spent mitigating the breach, and out-of-pocket costs. Legal action can also encourage enhanced security measures by Carlysle to protect sensitive personal information.

At Class Action U, we connect affected individuals with attorneys experienced in class action lawsuits. Contact us for a free consultation to explore your legal options and determine if you have a case.