Quit stealing
You can minimize the risk that your computer or mobile device will be compromised by malicious software by not stealing movies, music, and software. Stay off the torrent sites, buy your music legally, and pay a fair market value for software on physical media or through a reliable online source.
I know it’s hard to pay for everything, and sometimes stealing is the only way to catch that episode of Two and a Half Men you missed, but you’re going to have to deal with it. Illegal peer-to-peer transactions and sketchy websites are ideal ways to deliver bad bugs to your machine. If you want to truly protect yourself, you’ll have to give them up.
This goes double for content of a more adult nature. Porn traffic is extremely high paced and anonymous, and users of adult torrent sites are less than happy about having to admit they’ve got a virus and where they picked it up. The sheer volume of content makes it impossible for the operators of a site to ensure its safety, and their motivation for doing so is pretty minimal. So pay for your porn! Those people work really hard. They deserve your money.