You know that special extra key you need to enter if you registered to 2 tier security so that if someone gets your account they still shouldn't have the info to get the funds out of your account. That uses an authenticator like authy to make the code to present when needed.
Is there a different word for it in bitcoin?
It's called two-factor authentication commonly mentioned as 2FA.
Aah. Yeah, if you enable 2FA on your AllCrypt.com account you need to enter it to withdraw funds. Nearly impossible for hackers to bypass.
So it is possible? I had 2FA on. But as I understand the accounts were not hacked, but the wallet server.
The Hack on AllCrypt is a different type then the Hack that CoinEx has claimed. CoinEx claims that their server was hacked and the hackers gained access to the Hot Wallets and stole the coins in reserve. The Hacker at AllCrypt was exploiting a bug in the code to Hack accounts rather than the server itself.... 2FA will secure you more in these types of hacks... but not against a server hack for hot wallets. That security needs to be implemented by the developers on their side.
There is no such thing as perfect security... only an ongoing battle to patch and make more secure when weaknesses are found or hit upon.