Last year the FBI busted an Estonian crime gang that had been hijacking computers and rerouting them to bogus websites. By infecting as many as half-a-million computers with the DNSChanger trojan, the crooks were able to reap advertising revenue. The FBI’s last step in cleaning up after the group’s work is to take infected computers off line. Read more about the case, and be sure to click the link in the article that will check your computer for infection.