The FBI is issuing a warning for computer users to be on the lookout for malware before Monday or you may be without Internet access.
Officials are sending a strong message that it is imperative to check your personal computer for malware.
Criminals have infected millions of computers around the world with software called DNS changer. It is an Internet service that turns safe domain names into numerical addresses that allow computers to talk to each other.
Security experts say infected computers probably got the DNS changer through email attachments or by clicking on infected links.
To find out if your computer is infected, you can check out this website, www.dcwg.org. You will then be guided through the process to fix the problem.