Eric Geier The Internet runs on ads, but when you see them in your browser, your first instinct should be to run the other way—fast. The lion’s share of the Internet is wallpapered with tacky ads that invite you to “Lose 15 lbs. with this 1 weird tip” and load your browser with spyware in the process. In other corners of the Web, you might download a free game or a piece of music from an untrustworthy site, ending up with malicious adware that hitched a ride along with it.
Legitimate sites do a decent job of screening their advertisers, weeding out those that spread viruses, malware, or scams. But even a single instance of malicious adware on your PC can inject bad ads into otherwise innocuous websites. Worse, the adware can change your homepage and redirect your searches and the URLs you try to visit. I’ve deep-cleaned countless PCs, and almost every time I remove viruses and malware from a machine, I find that adware was previously installed...How to clean and secure your browser here.
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