Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

OSI Systems

Disclosed Mar 10, 20264,910 affectedConfirmed

Official notice

What is known

People affected4,910 (as reported by the organization)
DisclosedMar 10, 2026
DiscoveredDec 25, 2025
HappenedDec 23, 2025
AttackRansomware
Data exposedSocial Security numbersAddressesNames
SectorTech · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: OSI Systems
Official noticeatg.wa.gov
Washington Attorney General breach notice: OSI Systems
Official noticeoag.my.site.com
Texas Attorney General data security breach report BR-0004902: OSI Systems
Official noticeago.vermont.gov
Vermont Attorney General: 2026-03-10 OSI Systems Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2026 data breach report: OSI Systems

Notices filed

Residents of VTMar 10
Vermont AGCount not stated
Residents of CAMar 11
California AGCount not stated
Residents of WAMar 11
Washington AG538 people
Residents of INMar 11
Indiana AG21 people
Residents of TXMar 12
Texas AG386 people
History of this record
source2026-09-25
empty to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-Year-to-Date-Report-7_2026.pdfby backfillSource
disclosed2026-09-25
2026-03-11 to 2026-03-10by backfillSource
data_types2026-09-25
[] to ["ssn","addresses","names"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 4910by backfillSource
attack2026-09-25
unknown to ransomwareby backfillSource
discovered2026-09-25
empty to 2025-12-25by 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 OSI Systems