biggest recent breaches of security
Yahoo hack attack: Biggest data breach ever Friday, 23 Sep 2016 | 1:51 PM ET | 01:10. At least 500 million user accounts have been stolen from Yahoo, the company confirmed on Thursday. The data breach is the largest from a single site in history, according to a database of other hacking incidents. In August, hackers were discovered trying to sell 200 million Yahoo accounts, which would have been the second-largest single breach.