Transport Workers Union Local 100 (TWU) recently disclosed a data breach involving unauthorized access to its systems. The incident exposed sensitive personal information of approximately 46,400 individuals, raising concerns about identity theft and data security risks.
Transport Workers Union Local 100’s Data Breach Investigation
Transport Workers Union Local 100 identified a cybersecurity incident involving an unauthorized third party who gained access to certain internal systems. According to the organization, the intrusion allowed access to specific data files for a limited period of time.
The unauthorized access is believed to have occurred between January 29, 2026, and February 3, 2026. Once the issue was detected, TWU immediately initiated a review of its systems and worked with third-party cybersecurity experts to investigate the scope and nature of the breach. The organization also took steps to secure its network and prevent further unauthorized access.
Following a detailed review of the affected data, which concluded on April 15, 2026, TWU determined that some of the compromised files contained personal information belonging to affected individuals. While the organization has stated that it is not aware of any confirmed misuse or fraudulent activity related to the breach, the exposure of sensitive personal data still presents a potential long-term risk.
Data breaches involving organizations that store employee or member information can be particularly concerning due to the type of data involved. Even if misuse is not immediately detected, exposed information can be used later for identity theft, financial fraud, or unauthorized medical-related claims. As a result, affected individuals are encouraged to remain vigilant and take proactive steps to protect their personal information.
To support impacted individuals, TWU is offering complimentary identity protection services and has implemented additional security measures aimed at strengthening its systems against future threats.
When Did This Breach Occur?
The unauthorized access occurred between January 29, 2026, and February 3, 2026. The organization completed its investigation on April 15, 2026, and began notifying affected individuals shortly thereafter.
What Information Was Breached?
The personal information potentially exposed in this breach includes:
- Full name
- Date of birth
- Social Security number
- Health insurance subscriber identification number
What You Can Do
If you received a notification from Transport Workers Union Local 100, it is important to act quickly to protect your personal information.
First, enroll in the complimentary identity protection services offered through IDX. These services include 24 months of credit monitoring, CyberScan monitoring, identity theft recovery assistance, and up to $1,000,000 in identity theft insurance coverage. Enrollment must be completed by July 24, 2026.
You should also regularly review your financial accounts, insurance statements, and credit reports for any unusual or unauthorized activity. If you notice anything suspicious, report it immediately to your financial institution and relevant authorities.
Consider placing a fraud alert or credit freeze with the major credit bureaus. A fraud alert can help warn creditors to verify your identity before opening new accounts, while a credit freeze restricts access to your credit report entirely.
Maintaining detailed records of any suspicious activity, communications, or time spent addressing the breach can also be helpful if issues arise later.
File a Data Breach Lawsuit Against Transport Workers Union Local 100
If your personal information was exposed in the TWU data breach, you may be eligible to pursue compensation through a class action lawsuit. Individuals impacted by data breaches may face financial losses, emotional distress, and ongoing risks associated with identity theft.
Taking legal action can help hold organizations accountable for failing to adequately safeguard sensitive data and may provide compensation for damages suffered as a result of the breach.
Contact us at Class Action U, where we’ll connect you with a lawyer skilled in class action lawsuits. If you’ve been contacted about this breach, received notice, or discovered you were impacted, fill out our quick, easy, and secure form to sign up. There is no cost to reach out to our legal partner and no obligation after speaking with someone from our team.
