It’s a good thing that web developer and online security expert Nir Goldschlager is on the side of the good guys. For the second time in a month, Goldschlager has found a dangerous loophole in Facebook’s messaging system that could’ve allowed any savvy hacker access to a users’ information.
Goldschlager said, “Even if the victim has never allowed any application in his Facebook account, I could still get full permission on his account via Facebook Messenger app_id.”