DisclosureLens
GLOBALMalwareEducationEducationRansomwareN0nRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

United Federation of Teachers

bd_aa9bc11d41b5f267 · schema v1 · pii pii-v2

Severity

High

Discovered

—

Filed

Sep 18, 2026

To disclose

—

Affected

Not disclosed

Confidence

50%
Full breach record for United Federation of Teachers →

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group N0n on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.

Group activity: EducationDiscovered: 2026-09-18
View aggregator listing on ransomware.live

Source: Ransomware.live

Post text · scraped from the leak site

Education / Labor Union · US — New York | 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. | [ACTIVE: deadline 2026-09-19 14:58 UTC]

Incident timeline — mostly unverified

? — ?

Breach window unknown

Sep 18, 2026

Claim posted

—

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Claim → filing

—

Compliance clock

Not assessable

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.

Source ceiling

  • actor name
  • victim claim
  • ransom/leak status
  • discovery date
  • materiality
  • notification
  • affected count
  • confirmed data types
  • compliance clock

The ✕ fields stay blank until a regulatory filing or victim disclosure lands.

About this group

n0n

169 tracked hereFull profile →