DisclosureLens
GLOBALMalwareEducationEducationRansomwareQilinRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

Alamo Heights School District

bd_03115f5e58d7439b · schema v1 · pii pii-v1

Severity

High

Discovered

Filed

May 28, 2026

To disclose

Affected

Not disclosed

Linked

4 filings

Confidence

50%
Full breach record for Alamo Heights School District

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Qilin 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: 2026-05-28

Source: Ransomware.live

Incident timeline — mostly unverified

? — ?

Breach window unknown

May 28, 2026

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 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 2 states

View merged incident ↗
Leak SiteMay 28 · first · this page

Pattern: first filing May 28, last Jun 22 (TX) — a 25-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.

About this groupFirst seen 2022-10-08

qilin

According to ransomware.live, Qilin ransomware was first observed in July of 2022. Qilin Ransomware is written in Golang and supports multiple encryption modes; all of which are controlled by the operator. Qilin actors practice double extortion – demanding payment for a decryptor, as well as for the non-release of stolen data.

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