Los Angeles Unified School District
Disclosed Sep 6, 20224 years agoConfirmed
Ransomware attack disrupts IT systems of second-largest US school district
LAUSD, the second-largest US school district, confirmed a cyberattack over the 2022 Labor Day weekend that disrupted its IT systems and was later confirmed as ransomware.
What is known
| People affected | Not stated in the sources we have |
|---|---|
| Disclosed | Sep 6, 2022 |
| Happened | Jul 31, 2022 |
| Attack | Ransomware |
| Data exposed | Other |
| Sector | Education · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Los Angeles Unified School Districtoag.ca.gov · Official notice | Official notice |
| Los Angeles school district warns of disruption as it battles ongoing ransomware attacktechcrunch.com · News | News |
| Everything we know so far about the ransomware attack on LA schoolstechcrunch.com · News | News |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Sep 6, 2022 | |
| California AGresidents of CA | Jan 17, 2023 | |
| California AGresidents of CA | Mar 24, 2023 |
History of this record
- 2026-09-25 · attack: unknown to ransomware · seed source
- 2026-09-25 · data_types: [] to ["other"] · seed source
- 2026-09-25 · disclosed: 2023-01-17 to 2022-09-06 · seed source
- 2026-09-25 · summary: empty to LAUSD, the second-largest US school district, confirmed a cyberattack over the 2022 Labor Day weekend that disrupted its IT systems and was later confirmed as ransomware. · seed source
- 2026-09-25 · title: empty to Ransomware attack disrupts IT systems of second-largest US school district · seed source
- 2026-09-25 · disclosed: 2023-03-24 to 2023-01-17 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.