The biggest data breaches of 2025 — so far

A roundup of major early-2025 security incidents: a massive PowerSchool breach reportedly impacting tens of millions of students and teachers with exposure of grades, medical data and Social Security numbers; alleged unauthorized access by Elon Musk’s DOGE to sensitive U.S. federal personnel and payment datasets; a Community Health Center network breach affecting ~1M patient records; stalkerware apps (Cocospy, Spyic, Spyzie) leaking millions of users’ phone data and emails; and a DISA employee-screening breach affecting over 3.3M people including SSNs and financial documents.