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.“We do not know if these accounts have been used in a malicious way”, he explained, adding that investigations were underway to find out what exactly the hackers had had access to and what they had done. According to Facebook, “nearly 50 million accounts have been affected directly”, that is to say, that the attackers were able to access their information on their profiles (names, gender, city…), thanks to the hacking of the feature to “See as”, to look at his own profile as if it was another user. This revelation is yet another ball at the foot of the group and its all-powerful CEO, who has already had to face this week the departure surprise of the two officers of its subsidiary, Instagram, against a background of conflict with the house mother. “Sorry” Mark Zuckerberg has explained that the flaw had been discovered on Tuesday: “an attacker has exploited a technical vulnerability to steal access tools allowing them to stay in the account Facebook of about 50 million accounts,” he said. These keys (“tokens” in English) allow you to reconnect automatically to his account. To the best knowledge of Facebook, that “works” with the FBI, the attackers were able to access data contained in the profiles, but without that, they would know what they had done or were doing. Hackers “have been able to use the account as if they were the owners”, noted Guy Rosen, in charge of the “Management product”.“We are sorry”, he added, specifying not to know who was behind the attack. For all that, according to initial findings, the pirates do have, it seems, not used this flaw to make publications on the hacked accounts, or gain access to private messages. The passwords have not been compromised, nor that your credit card information, assured the company. For the time being, Facebook has suspended the feature to “See as”, and has disconnected the 50 million accounts hacked, leading their owners to have to connect again. Facebook has extended this far, “as a precaution”, with 40 million of additional accounts, including the feature “View as” has been used recently. Hacking this “shows once again that we are in an arms race,” with “constant attacks” designed to steal information,” said Mark Zuckerberg. Confidence-hacked It is a new misfortune the severity of which remains to be determined precisely for the first social network in the world, which accumulates controversy and criticism for almost two years. Rohit Chopra, a member of the agency of the regulator in u.s. commerce (FTC),has simply asked for the “answers” via his Twitter account.“Enough is enough”, responded the association for the defence of digital rights Fight for the Future, calling on elected officials to legislate. These last few months especially, the users ‘ confidence has already been seriously shaken by several scandals and Facebook crosses the most serious crisis of its (young) history. The group is criticized to have been used as a platform of political manipulation, especially during the American presidential campaign of 2016, or to have let that slip the data of tens of millions of users without their knowledge to the British firm Cambridge Analytica.Despite the apology repeated by its leader, including before u.s. Congress, the image of Facebook, born in 2004, has emerged largely tarnished. And while the scandals had long spared her finances, the giant has seen a sudden tobacco stock unissued in July after it announced a quarterly revenue and a number of users judged to be disappointing. In addition to these scandals, Facebook had warned there have already been two years that the exponential growth might one day or the other to slow down. After including Yahoo or even Uber which has paid off this week with a heavy fine the theft of massive personal data is not saving the giants of technology.