Trojan Horse on OSX?

Your FB and Gmail accounts probably got "hacked" as a result of a weak password. If you have a trojan on your Mac, you must have given administrator permission to install it (meaning you entered your password when prompted).

 

It wasn't coincidence. It was using the same password.

If I were breaking into mail accounts, the first thing I'd do is look at all the messages to see what other services the victim used, then try the same password on those accounts. Then I'd try slight variations on that password, such as adding a "1" or the name of the service.

In my experience, most people have no idea what a weak password is. Since you've changed the password, would you please post the old one that got broken into, so other people can see an actual example.

 

For starters,

http://blog.wundercounter.com/2009/12/twitter-and-avoiding-weak-passwords.html

 

Anyone's email account can be hacked or spoofed, regardless of what computer or operating system the owner is using. It doesn't involve your computer at all. The hacker/spammer doesn't know or care what kind of computer or OS you have... they only need your email address for spoofing and also the password, to hack in.

Mac Virus/Malware Info