To be thorough, select "Privacy and security" in the sidebar, then click "Security" on the right side, and be sure to turn on ...

When your search engine keeps changing to Yahoo, it's most likely a virus, and you can fix it by resetting your browser. Here ...

It's incredibly rare for an iPhone to catch a virus, but not impossible. Here's how to diagnose and remove any existent virus ...

In response to the Aug. 20 story by Robert Lemos, "": I have Windows 2000 Professional on my home machine. I read the news reports that the virus was coming. I already had antivirus software so I ...