You could be among the hundreds of thousands of Americans who may lose their Internet service on Monday. Now is the time to check your computer and find out.
If your computer is infected with the DNS Changer Virus, you will lose access to the Internet on Monday.
USA Today reports the virus was part of an online advertising scam that redirected computers to fake servers, even disabling anti-virus software.
The FBI arrested the hackers last year, but the FBI had to set up clean Internet servers to take the place of the malicious servers so infected computers wouldn't lose their service.
However, on Monday that system is being shut down.
According to online security company Norton at least 300,000 computers are still infected.