Through a statement, the social network, Facebook, accepted security problems that were left behind as a result nearly 50 million accounts.
"We take this very seriously and we want everyone to know what has happened", repeated the social network.
The security problem has the tokens of access, which is the equivalent of the digital keys that keep people connected to Facebook, so they do not need to be re-entered password every time they use the application.
If you are logged out of your account and have been asked to log in again, this is because we have detected a security vulnerability and take immediate action to protect people on Facebook. More information https://t.co/XLcHGYFBu2
– Facebook (@facebook) September 28, 2018
As measures, Facebook reset the "tokens" of accounts that confirmed that they were affected to protect the accounts. In the same way the company takes preventive measures.