Hackers: 500 million users Yahoo Users account Hacked.

Yahoo says “state-sponsored” hackers stole information from about 500 million users in what appears to be the largest publicly disclosed cyber-breach in history.The breach included swathes of personal information, includingnames and emails, aswell as “unencrypted security questions and answers”.The hack took place in 2014 but has only now been made public.The FBI has confirmed it is investigating the claims.Stolen data includes names, email addresses, telephonenumbers, dates of birth and encrypted passwords, but not credit card data, Yahoo said.It said the information was “stolen by what we believe is a state-sponsored actor” but did not say which country it held responsible.News of a possible major attack on the technology firm emerged in August when a hacker knownas “Peace” was apparently attempting to sell information on 200 million Yahoo accounts.On Thursday, Yahoo confirmed the breach was far bigger than first thought.Yahoo is recommending all users should change their passwords if they have not done so since 2014.In the UK, ISPs Sky and BT issued warnings for customers that they may be affected by the breach as Yahoo provides email services for both ISPs. Sky advised all its customers to change their passwords as Yahoo is behind all Sky.comemail accounts.BT said it was carrying out its own investigation but advised the “minority”of its customers who use Yahoo mail to change their passwords.