How do you know if your email or Facebook account has been hacked?

Answer 1

If you see no evidence of damage to it, changes you did not make, for example, then I would be at a loss to know what you mean by "hacked." I assume there is a limit to the privacy of anything on the Internet, and don't worry about it. I have been told by people who studied Internet security in college that the only sure way to be secure in your data is to not use the Internet. If it's out there, someone can get at it if they want to bad enough. The security experts generally keep one step ahead of the hackers, but not for long.