Transport Workers Union Local 100 Reports Data Security Incident

Transport Workers Union Local 100, which represents transit employees, recently reported a data security incident. This filing was made with the Massachusetts Attorney General's office on April 24, 2026, indicating that an event impacting the security of information has occurred within the organization.

As a labor organization, Transport Workers Union Local 100 collects and maintains various types of personal information from its members. While the specifics of the data exposed in this particular incident have not been detailed in the public filing, unions typically handle sensitive records such as membership rosters, employment data, and benefit enrollment details. The current investigation aims to clarify what information was involved.

Because the investigation is ongoing, the exact nature of the incident and the categories of personal information affected remain undisclosed. However, any compromise of personal data can create potential risks for individuals, including exposure to unauthorized access or misuse of their information. This underscores the importance of exercising caution following such an event.

If you receive a notification letter from Transport Workers Union Local 100, it is advisable to carefully review the information provided. Regardless of the specific data types involved, general protective measures include closely monitoring all personal accounts for any suspicious activity, reviewing credit reports regularly for unfamiliar entries, and being vigilant against unexpected communications that might attempt to solicit personal details.

These proactive steps can help mitigate potential issues stemming from a data security incident. The union's report to the Massachusetts Attorney General indicates official acknowledgment of the breach and the start of a process to address its implications.