Originally Posted By: Voltmaster
Obtaining your password most of the time has nothing to do with computer compromise.
It usually is done through "phishing" pretending a log in screen is secure where the information is actually is not.
Best thing to do is changing password and running a 2-step verification
http://www.askdavetaylor.com/enable_yahoo_mail_two-step_authentication_security.html
Use a diffrent machine just to be safe , Ubuntu is NOT safe.
The problem with ubuntu is your able to download open-sourced software very easily which you allow them to motify ANY files by giving your your information.
Just like on a Mac , once you give your password to the installer , if its malicious its too late. An updated Windows machine with internet security ( anti virus , maleware, and firewall ) is safest and most convenient way to use a computer.
Avast and MalwareBytes are my two fav software and I run both togheter, they have free version which include full on scan.
http://download.cnet.com/windows/
^ numbers 1 and 3 on that list to the right of screen.
Most of the time when someone's facebook gets "hacked" or their gmail account - it's because they went on a site that looks like facebook, typed in their info, and got phished.