If your computer is infected with the d-n-s 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.
But come Monday That system is being shut down.
According to online security company Norton at least 300-thousand computers are still infected.
Click here to make sure your computer does not have a virus!
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.