I have a straight forward queston : For example you know the password of someone's friendster or myspace or match.com account. Is it possible to open/read their account without leaving any trace without them finding out someone is opening and reading their account?
Let's say you do not read any unread messages only the read ones and you do not change any settings in the account will there be any trace, clue or whatever that another person is accessing the account?
btw, you are in different locations using different computer, if that is relevant.