high severity September 18, 2026 · 4 min read Unverified claim — what this is

United Federation of Teachers Listed by N0n Ransomware Group

If you are a customer of United Federation of Teachers, here’s what is being claimed, and what it would mean for you.

Education / Labor Union · US — New York What will be published if no settlement is reached The union’s complete legal case archive — approx. 181,420 documents: grievance and arbitration files, disciplinary appeal decisions and personnel case files, each named for a member Contract documents: CBAs, MOUs, MOAs and side letters Nurse-federation and health-benefit-fund case materials Teacher evaluation and class-size complaint files Staff search and case-view audit logs Publication proceeds in batches after the deadline. The victim can verify everything and settle in their private negotiation room
— from N0n’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

United Federation of Teachers Listed by N0n Ransomware Group

The United Federation of Teachers has been listed on the N0n ransomware-extortion group's leak site. According to the listing, the group claims to hold roughly 181,420 documents from the union's legal case archive, including grievance files, arbitration records, disciplinary appeals, personnel cases, teacher evaluations, and related contract materials. The filing date is September 18, 2026. The union has not publicly confirmed the claim as of writing.

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What This Listing Actually Means for You

If the claim is accurate and your records are among those listed, the information involved is the kind that follows union members for decades. Grievance and disciplinary files often contain sensitive personal details, workplace disputes, medical accommodations, and private correspondence that do not expire when employment ends. Unlike a credit card number, this material cannot be cancelled or reissued. Its value to identity thieves, employers, insurers, or anyone seeking leverage does not diminish over time.

The listing does not state how many individuals are named across the documents, nor does it enumerate specific categories of personal information. No permanent government identifiers such as Social Security numbers are mentioned in the record.

Passwords and Credential Exposure

The group has not disclosed whether any password data was taken, nor has it revealed the storage method used by the union. Because the hashing scheme remains unknown, treat your United Federation of Teachers account password as potentially compromised. Change it immediately on the union's systems and anywhere else you have reused the same password. This single precautionary step removes the uncertainty the record leaves unresolved.

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Report details & sourcing

Attributed to N0n · 9 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed September 18, 2026

Last reviewed September 18, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

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high September 18, 2026