By next year we shall see the result of the Libra development and if its going to be a successful launch, do you think one day we shall see a facebook login button on exchanges like binance? Would you login to it?
I have seen this on websites like medium.com. Worse is taht not only binance but also kraken and bittrex I think if a login is exchanged using Facebook, this is very bad, and obviously bad. If something happens with our exchange account, do we question the exchange about the problem we are experiencing, or we will ask the Facebook owner. Because this is one thing with two different databases.
If Facebook would create that for sure they will make it more secure just for the sake of there users and image need how big there server is and total number of employees for sure they can handle the security if you really mean that. But if you worry about hacking issues then much better if you look on the links where your you try to log in and handle your account properly.