Transport Workers Union Local 100 Data Breach Lawsuit Investigation
If you recently received a data breach notification from Transport Workers Union Local 100, your personal information may have been exposed during a January–February 2026 cybersecurity incident. Our legal team is investigating potential claims on behalf of affected members and employees.
Key Takeaways
Breach window: January 29–February 3, 2026
Discovered: April 15, 2026 | Consumer notices mailed: April 24, 2026
Exposed data: names, dates of birth, Social Security numbers, health-insurance subscriber IDs
Free services offered: 24-month IDX identity-theft protection, CyberScan monitoring, $1 million insurance, and fully managed recovery
Legal rights: You may be entitled to compensation for out-of-pocket losses, time spent, and risk of future identity theft
What Happened
Transport Workers Union Local 100 (Transport Workers Union Local 100) detected unauthorized access to certain computer systems. A forensic review revealed that an intruder could access data files between January 29 and February 3, 2026. The union contained the incident, hired third-party cybersecurity experts, and completed a file-by-file analysis. On April 15, 2026, it determined that some of the compromised files held personal information. Written notifications were mailed on April 24, 2026, in accordance with state law.
What Information Was Involved
The union’s investigation found that the following data elements may have been exposed:
Name
Date of birth
Social Security number
Health-insurance subscriber identification number
As of the notice date, the union stated it had no evidence of misuse of the affected information.
How Transport Workers Union Local 100 Responded
After confirming the intrusion, the union:
Engaged external cybersecurity specialists to investigate and contain the breach.
Implemented additional technical and administrative safeguards to reduce future risk.
Offered complimentary IDX identity-theft protection and credit monitoring for 24 months to all notified individuals.
Next Steps for Impacted Individuals
If you received a letter dated April 24, 2026, consider taking the following steps right away:
Activate your free IDX services using the enrollment instructions in the notice.
Monitor bank, credit-card, and health-insurance statements for unfamiliar activity.
Request free credit reports from Equifax, Experian, and TransUnion, and place a fraud alert or credit freeze if needed.
Document any time spent or losses incurred; these records can support a legal claim.
Consult a data-breach attorney to understand compensation options under state and federal law.
Your Legal Options
Under consumer-protection and privacy statutes, organizations that fail to safeguard sensitive data may be liable for damages. Potential compensation can include:
Reimbursement for fraud-related losses
Credit-monitoring and identity-restoration costs beyond the free IDX offering
Lost time addressing the breach
Statutory damages where available
Our investigation seeks to determine whether Transport Workers Union Local 100 used reasonable security measures. Participation is confidential and free unless we recover money for you.
Company Overview
Transport Workers Union Local 100 is the largest public-transportation labor union in New York City.
Website: twulocal100.org
Headquarters: 195 Montague St, 3rd Floor, Brooklyn, NY, USA
Founded: 1934
Industry: Transportation / Labor Union
Employees: 201–500
Sources
Impacted Entities
Frequently Asked Questions
I received a data breach letter from Transport Workers Union Local 100 — what should I do?
Enroll in the free IDX identity-protection service, monitor your financial accounts and credit reports, and contact a data-breach attorney to evaluate your legal rights.
How do I submit a claim related to the Transport Workers Union Local 100 data breach?
You can start a claim by requesting a free consultation through our case-review form. An attorney will assess eligibility and guide you on documentation needed to pursue compensation.
What information did the Transport Workers Union Local 100 breach expose?
Potentially exposed data includes your name, date of birth, Social Security number, and health-insurance subscriber identification number.
Did Transport Workers Union Local 100 offer credit monitoring, and for how long?
Yes. The union is providing complimentary IDX identity-theft protection, including 24 months of credit and CyberScan monitoring, plus a $1 million insurance policy.
How many people were affected by the Transport Workers Union Local 100 breach?
The official notice did not specify the total number of impacted individuals. You are affected if you received the April 24, 2026 notification letter.
How can I get the official breach notice for Transport Workers Union Local 100?
You can download the notice directly from the Maine Attorney General’s website here: Official Breach Notice (PDF).
Attorney Advertising. Prior results do not guarantee a similar outcome.
