Additionally, you should be careful about spam messages, and pay attention to the browser you're using when browsing the web: for example, Chrome doesn't allow one to disable JavaScript, which means that a malicious site might be able to hijack your browser, for example by fooling you into completing a fake survey or downloading pirated software.
After all, as long as you keep your computer secure, there's a good chance that you'll just get a few annoying prompts before you encounter a 99d5d0d