Use encryption, keep your software up-to-date, disable images in e-mail, scan e-mail attachments for viruses, use a nonadministrator Windows account, scan for viruses manually, and use a secure-erase utility to destroy old data.(http://feeds.feedburner.com/~r/cnet/tcoc/~4/LFimEZ-pHYM)
Attribution: CNET, ECTNews and TechCrunch.