It's really quite amazing that I can use 2 factor authentication both my google accounts and facebook. When I see people get "hacked" and lose access to their email and facebook I always advise them to turn it on. Ironically, they decide that its too much work to protect themselves and would rather take the risk. For non-techies I think that mentality is quite common, its quite scary. I wonder if its possible to have an user friendly, secure authentication system.