I am an active member of several forums.I know many of my online friends have lost their hard earned Online money due to their own mistake.Their Paypal accounts are hacked.It is only because of not changing Paypal password frequently.After every major transaction in your paypal,you should logout.Then after one hour log in again and change your password.Finally logout once again and clear your cookies and temporary internet files. Start your PC and do your online jobs as usual.