Hackers stole data from one billion Yahoo users

Yahoo has revealed one billion users' data may have been stolen by hackers in 2013. Picture: Dominic

Yahoo has revealed one billion users' data may have been stolen by hackers in 2013. Picture: Dominic Lipinski/PA Wire - Credit: PA

Email, search and online news business Yahoo has said it believes hackers stole personal data from more than one billion user accounts as part of a cyber attack that occurred in 2013.

The technology giant said it believes the attack is 'distinct' from another cyber attack the company reported in September this year, which involved around 500 million accounts and was said to have been carried out by a 'state-sponsored actor' in late 2014.

Yahoo says this personal data affected included 'names, email addresses, telephone numbers, dates of birth, hashed passwords', as well as security questions and answers, but the company claimed financial information had not been compromised.

'Yahoo has identified data security issues concerning certain Yahoo user accounts,' the firm said in a statement.

'Yahoo has taken steps to secure user accounts and is working closely with law enforcement.


You may also want to watch:


'As Yahoo previously disclosed in November, law enforcement provided the company with data files that a third party claimed was Yahoo user data. The company analysed this data with the assistance of outside forensic experts and found that it appears to be Yahoo user data.

'Based on further analysis of this data by the forensic experts, Yahoo believes an unauthorised third party, in August 2013, stole data associated with more than one billion user accounts.'

Most Read

The company also said it analysis has led it to believe the same state-sponsored hackers were involved in this newly-disclosed attack.

'Yahoo encourages users to review all of their online accounts for suspicious activity and to change their passwords and security questions and answers for any other accounts on which they use the same or similar information used for their Yahoo account,' the statement said.

'The company further recommends that users avoid clicking links or downloading attachments from suspicious emails and that they be cautious of unsolicited communications that ask for personal information.'

The firm, which is currently being taken over by Verizon, said it was continuing to work with law enforcement authorities.

Become a Supporter

This newspaper has been a central part of community life for many years. Our industry faces testing times, which is why we're asking for your support. Every contribution will help us continue to produce local journalism that makes a measurable difference to our community.

Become a Supporter
Comments powered by Disqus