The Glendale Unified School District
bd_ecc1dfd09ac15189 · schema v1 · pii pii-v1
Full breach record for The Glendale Unified School District →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Medusa 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.
Source: Ransomware.live
Post text · scraped from the leak site
The Glendale Unified School District is a school district based in Glendale, California, United States. It consists of 20 elementary schools, 4 middle schools, 4 high schools and 3 facilities for homeschoolers and special-needs students.It currently has about 20,000 students
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Dec 11, 2023
Claim posted
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Corroborated · see linked filings
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
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Compliance clock
Not assessable
Linked disclosures
Why this link?Ransomware claims (1)
- Leak Sitemedusabd_4443d874ccf49fa92023-12-06 · +5dVerified by operator
Regulatory filings (3) · sorted by filing gap
- Pressmedusabd_cb4927082a662c562023-12-06 · +5dCandidate
- California State AGbd_ca69de7f141c486b2024-01-10 · +30dVerified
- California State AGbd_815da93e41cf53b22024-08-09 · +242dVerified by operator
Filing propagation · 4 filings
View merged incident ↗Pattern: first filing Dec 6, last Aug 9 (CA) — a 247-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
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.
medusa
According to ransomware.live, Medusa is a ransomware-as-a-service operation active since June 2021 that has targeted over 300 victims across critical infrastructure sectors including healthcare, education, legal, and manufacturing using double-extortion, with attacks surging 42% between 2023 and 2024 and a formal CISA advisory issued in early 2025.