Some 50 million accounts in Facebook have been hacked due to a security flaw, revealed Friday, the social network, to the image and finances, already seriously shaken by several controversies, particularly around the protection of personal data. Yet another blunder for the network to 2.2 billion users, which has pushed back the title to Wall Street, which ended down 2.59% to 164,46 dollars.“The fault has been repaired yesterday (Thursday) evening”, said Friday the boss of Facebook Mark Zuckerberg, in a conference call with reporters to provide an update on the situation.