Today the FBI closed down a network of DNS servers that give an access to the Internet for thousands people. The reason is a malware package called DNSChanger that the users must protect their PCs from. This 'program' is so widespread that even such powerful companies like Google and Facebook teamed up to remove the virus. The FBI arranged for a private company to run a website – as a place where computer users could go to see if their computer was infected and find links to other computer security business sites where they could find fixes for the problem. Well, be careful and watchful.