There’s a huge Facebook security flaw that lets anyone into your account. But one simple tweak fixes it
The social network has described the finding as a 'concern', but hasn't yet plugged the hole
20 Jul 2017 ... Fortunately, you can protect yourself easily ... They don't need to know your password to gain access, and can do it without you ever noticing. ... He then searched for the number on Facebook, which brought up a single account ... fact that Facebook allows you to link multiple phone numbers to your account, ...