2026 OSI Systems — 4,910 individuals (INC RANSOM)
Data compromised
Names, SSNs, addresses, dates of birth, government IDs
Technical writeup
OSI Systems experienced a data breach affecting 4,910 individuals. Unauthorized access detected December 25, 2025; activity began December 23. INC RANSOM claimed responsibility December 30, alleging 250 GB of confidential documents, client info, and financial records stolen. Exposed: names, Social Security numbers, addresses; some records included DOB and government IDs. Reported to Maine, California, Massachusetts, Texas attorneys general March 11, 2026. Offering 12 months credit monitoring via IDX.
Root cause
INC RANSOM; unauthorized network access