"None of your friends on their own has enough information to access your account, as they are only sent a single code. But, of course, if your 'trusted' friends turned out to be untrustworthy and banded together they would - between them - be able to access your account.
"So you best be sure that you keep a close eye on who your trusted friends are (especially if you're prone to falling out, or they think practical jokes are amusing), and be pretty confident that they are taking their own computer security seriously."
Cluley also noted that anyone who compromises an account will likely change the "trusted friends" group almost immediately, rendering the whole security measure "kind of pointless."
In addition to , Facebook also introduced App Passwords, which allows users to log into third-party apps with a unique password that differs from a primary Facebook login.
Cluley endorsed the new feature, noting that it was definitely a good idea not to use your Facebook login on other sites or apps.