TWU Local 100 Listed by qilin Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
TWU Local 100 was listed by the qilin ransomware group on February 23, 2026, after internal files were exfiltrated in a ransomware attack. Anyone connected to the organization should check whether their information was exposed and take protective steps.
What happened
The only confirmed information is the appearance of TWU Local 100 on the qilin leak site. The group claims to have stolen internal data. No details on the date of the intrusion, the method of access, the volume of data taken, or any ransom demand have been made public. It is not known whether the organization has confirmed the claims or whether any data has been published.
Inside qilin
Qilin operates as a ransomware group that uses double-extortion tactics, encrypting systems and threatening to release stolen files. The group maintains a leak site where it lists victims and, in some cases, posts samples of data. Public reporting has linked Qilin to intrusions across multiple industries, with activity observed since at least 2022. The group’s listings represent its own assertions and are not independently verified in every case.
About TWU Local 100
TWU Local 100 is a labor union representing transit workers, primarily in the New York City area. Organizations of this type maintain records on members that include employment history, contact information, and, in some cases, details related to benefits or grievances. A breach at such an organization can expose data belonging to current and former members as well as staff.
What was likely exposed
The facts state only that internal files were exfiltrated. The precise categories of data have not been disclosed. Unions of this kind commonly hold personal identifiers, employment records, and limited financial or benefits information for members. Without a confirmed inventory, the exact contents of the exfiltrated files remain unconfirmed.
Why it matters
Exposure of internal union files can create risks of identity misuse or targeted fraud for affected members. For the organization, the incident may complicate ongoing operations and require additional resources for investigation and remediation. The absence of Reported Details on scale or data types limits a full assessment of impact at this stage.
If your data was in this claimed breach
Monitor financial accounts and credit reports for unusual activity. Change passwords for any union-related portals and enable multi-factor authentication where available. Individuals can run a free exposure scan of their email address against known breach data to check for prior appearances of their information.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Read GalaxyWarden’s full analysis of the TWU Local 100 Listed by qilin Ransomware Group →
Publicly posted by qilin — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.