How can I tell if my account has been hacked into?

[Donncha]

Any hacker will hack for a reason. My suggestion is that most hackers tend to put up pictures on your account and say really awful comments about the picture and of course your friends you have on Facebook. This is actually just one of the major changes they make to your account they can write awful messages they can completely change your profile I can't recommend any way to prevent hackers from hacking into your accounts because I'm not really that kind of intelligent person-hope this helped☻