Data theft
Data breaches
Confirmed data breaches and data-theft extortion: what was taken, who is affected, and what to do.
Each report separates what the organisation or a regulator has confirmed from what attackers claim, and ends with what affected people should do. For the full list of 2026 incidents, see the data breach tracker and the India breach tracker.
Got a breach notice? Start with what to do after a data breach, and if Aadhaar or PAN details were involved, this guide.
In this section
AdaptHealth reports 4.1 million patients affected by June data theft
ATF confirms breach of standalone CALEA system after Qilin claim; leaked files unverified
Tata Electronics confirms cyber incident after group leaks alleged Apple and Tesla files
