If You Have to Go There: It's probably best to avoid torrent sites entirely, given their untrustworthy content, but if you must visit, use a secondary PC to protect your main system.
Threat 4 > Malware hiding in video, music, or software downloads Instead of clicking on links in a retailer's e-mail, go directly to the retailer's site. If You Have to Go There: Don't trust anything in your inbox. Threat 3 > E-mail scams or attachments that get you to install malware or give up personal info TinyURL has a preview service you can turn on. Some link-shortening services, such as Bit.ly, attempt to filter out malicious links, but it seems to be a manual process, not an automatic one. TweetDeck and Tweetie for Mac have preview features that let you see the full URL before you go to the site in question. The other option is to use a Twitter client app. Of course, that takes some of the fun out of Twitter. If You Have to Go There: Simply don't click links. Threat 2 > Shortened links that lead you to potentially harmful places
And you can configure the Flash plug-in to ask you before it downloads any Flash cookies. If You Have to Go There: To help protect against Flash-based attacks, make sure you keep your Flash browser plug-ins up-to-date. Threat 1 > Malicious Flash files that can infect your PC