July 9: The Day Your Internet Connection Could Go Offline

An advertising scam has infected computers worldwide -- maybe even yours -- to redirect the addresses you type into your browser to rogue websites. The FBI set up a workaround several months ago, but that system will be dismantled this summer. That means if your computer has been infected, you will lose Internet access. Check your computer here, and more about the problem and how to fix it if yours is infected.