Yahoo! discover a cyberattack against a billion more users

"This incident is likely to be different than the one the company revealed" last September

  Yahoo! He acknowledged that he was the victim of a cyber attack in 2013 that affected "more than a billion" users, adding to the victims of piracy prior to 500 million accounts.

"Yahoo believes that an unauthorized third party stole information related to more than one billion user accounts in August 2013," the company said in a statement. "This incident is likely to be different than what the company revealed" last September, he added.

The news can be a major blow to the IT company, which is in difficulties and in the process of selling assets of its core operations to the US telecommunications operator Verizon for 4.8 billion dollars.

   The attack revealed in September, which occurred in 2014, affected 500 million accounts and then became the largest computer hacking registered. In addition, he threatened to terminate the agreement with Verizon or with an agreed price reduction.

Among the stolen information would be names, email addresses, telephone numbers, birthday dates and, in some cases, security questions, encrypted or unencrypted; but data of payment cards or recomposed passwords were not included, according to Yahoo !.