Facebook rolls out physical keys to guard against hacking mobile accounts

The keys, which can clip onto a keychain and plug into a mobile device, are intended to serve as two-factor authentication method to make it much more difficult for hackers to gain access to accounts.

Facebook rolls out physical keys to guard against hacking mobile accounts
The keys, which can clip onto a keychain and plug into a mobile device, are intended to serve as two-factor authentication method to make it much more difficult for hackers to gain access to accounts.