The price of free software?

Has your computer been acting strange lately? Maybe your default search engine or other browser settings changed, or you’re getting suspicious warnings about your computer’s performance. Are you are seeing ads that don’t seem to belong – like ones that cover up parts of the webpage or are on a site that doesn’t usually show ads? If so, you may have unwanted software on your computer. Your next step: get rid of any malware.

Source: FTC Scam Alert Feed
The price of free software?