Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Allied Telesis

Disclosed Apr 21, 202543,413 affectedConfirmed

Official notice

What is known

People affected43,413 (as reported by the organization)
DisclosedApr 21, 2025
DiscoveredMay 20, 2024
HappenedApr 30, 2024
AttackRansomware
Data exposedNot stated
SectorOther · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Allied Telesis
Official noticeatg.wa.gov
Washington Attorney General breach notice: Allied Telesis
Official noticeago.vermont.gov
Vermont Attorney General: 2025-04-21 Allied Telesis Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2025 data breach report: Allied Telesis

Notices filed

Residents of CAApr 21, 2025
California AGCount not stated
Residents of WAApr 21, 2025
Washington AG783 people
Residents of VTApr 21, 2025
Vermont AGCount not stated
Residents of INApr 21, 2025
Indiana AG10 people
History of this record
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 43413by backfillSource
source2026-09-25
empty to https://ago.vermont.gov/document/2025-04-21-allied-telesis-data-breach-notice-consumersby backfillSource
attack2026-09-25
unknown to ransomwareby backfillSource
discovered2026-09-25
empty to 2024-05-20by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about Allied Telesis