hi i have reason to believe my account on facebook has been hacked. i noticed missing notifications in my feed and zero notifications in my facebook dating account. i tried everything i can think of pretty much and tried switching on all the two factor options. however i am getting a security key in the mail to use with android cell. if i factory reset my cell and then turn on all the 2 factor again in facebook including the newly acquired security key for my android does anyone know if that would solve my problem? also if i go that route in factory resetting how do i recover my apps and settings safely without being vulnerable to bringing back whatever is on my phone that is causing this problem? many thanks in advance for help guys.