On Monday, July 9, the much-talked-about DNS Changer 'internet blackout' will take place.
Hundreds of thousands of computer users could potentially be affected, if they don't take action now.
We've made a video to cut through the hype and help you avoid problems come Monday morning.
(Enjoy this video? Check out more on the SophosLabs YouTube channel.)
The DNS Changer Working Group (DCWG), a cross-industry team of experts, has created a number of websites which offer to tell you automatically if your computer might have been affected by the DNS Changer malware. You can access that list here.
Please note that it is still strongly recommended that you scan your computer with an up-to-date anti-virus product, and although one of the DCWG-endorsed tests may give you peace of mind, there is nothing better than checking your DNS settings for yourself.
Further reading: Internet doomsday on July 9th? Don't panic! Take action