ICT Security-Sécurité PC et Internet

Yahoo has disclosed that more than one billion accounts may have been stolen from the company's systems in another cyberattack.

The company said in a statement Wednesday after the markets closed that unnamed attackers stole the accounts in August 2013, a little over a year prior to a previously disclosed attack in September, in which attackers stole around 500 million accounts in 2014.

But the company said it wasn't able to identify the intrusion associated with August breach.

The statement said that the hackers may have stolen names, email addresses, telephone numbers, hashed passwords (using the weak, easy to crack MD5 algorithm) dates of birth, and in some cases encrypted or unencrypted security questions and answers.

Yahoo said it has invalidated unencrypted security questions and answers so that they cannot be used to access affected accounts.

But payment card data and bank account information, stored in separate systems, are not thought to have been stolen in the attack.

 

Learn more / En savoir plus / Mehr erfahren:

 

http://www.scoop.it/t/securite-pc-et-internet/?tag=Yahoo...

 

http://www.scoop.it/t/securite-pc-et-internet/?tag=DATA-BREACHES

 

http://www.scoop.it/t/securite-pc-et-internet/?tag=Cyberattacks