Keep a close eye on your computer today.

Experts say you might be infected and lose access to websites, among other things, as the FBI shuts down temporary servers used to stop a scam called DNS changer.

Warnings about the problem have been splashed across Facebook and Google.

According to the experts, a total of about 300-thousand computers worldwide, including in Canada, could be infected and lose Internet connection.

The FBI had clean servers installed, replacing malicious servers after busting hackers late last year in an online ad scam.

Thing is, replacements are being turned off today.

"The world will not end, the sky will not fall. This is not Y2K all over again. It's just a reminder that we do need to be careful about malware, we do need to follow best practices", says CJAD tech contributor Carmi Levy.

Some 10-thousand Canadian computers could be infected.

If you find you're having problems you can see if you're affected at this website, set up by the Canadian Internet Registration Authority (CIRA), or over at Levy's website.

Photo: Ed Yourdon