DisclosureLens
GLOBALMalwareEducationEducationRansomwareInc RansomRansom DemandedActor NamedMedium

OAK PARK & RIVER FOREST HIGH SCHOOL

bd_09536f8d72b5ff9a · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

May 16, 2025

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

50%
Full breach record for OAK PARK & RIVER FOREST HIGH SCHOOL →

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group INC Ransom 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: 2025-06-21
View aggregator listing on ransomware.liveView merged incident timeline

Source: Ransomware.live

Post text · scraped from the leak site

Welcome to Oak Park and River Forest High School! Oak Park and River Forest High School provides a dynamic, supportive learning environment that cultivates knowledge, skills, and character and strives for equity and excellence for all students.

Incident timeline — mostly unverified

? — ?

Breach window unknown

May 16, 2025

Claim posted

—

Corroborated · see linked filings

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

Claim → filing

—

Compliance clock

Not assessable

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings

View merged incident ↗
Leak SiteMay 16 · first · this page
Indiana State AG+70d

Pattern: first filing May 16, last Jul 25 (IN) — a 70-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.

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.