DisclosureLens
GLOBALMalwareEducationEducationRansomwareThegentlemenRansom DemandedActor NamedMedium

Colegio Notre Dame Campinas

bd_d881a83bdefa9a5a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Apr 27, 2026

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for Colegio Notre Dame Campinas

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Thegentlemen 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: 2026-05-06

Source: Ransomware.live

Post text · scraped from the leak site

notredamecampinas.com.br zoominfo.com/c/colégio-notre-dame-campinas/460150468 Colégio Notre Dame is a private Catholic school founded in 1961 in Campinas, São Paulo, Brazil, by the Congregation of Holy Cross. The school offers education from kindergarten through secondary school (Ensino Infantil to Ensino Médio), as well as international curriculum programs. With over 12,000 Instagram followers and 51–200 employees, it is one of the most recognized private schools in the Campinas region. Its motto — "educating minds and hearts" — reflects its mission to combine academic excellence with Catholic values

Incident timeline — mostly unverified

? — ?

Breach window unknown

Apr 27, 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 groupFirst seen 2023-02-28

thegentlemen

According to ransomware.live, The Gentlemen is a RaaS group that emerged in July–August 2025, rapidly claiming over 320 victims across 17+ countries by offering affiliates a 90% revenue share, deploying a Go-based locker against Windows, Linux, NAS, and BSD systems; a compromised C2 server in 2026 revealed more than 1,570 linked victims.

870 tracked hereFull profile →