(Some of the text comes out pretty small in the video window below. If you watch directly on YouTube, you'll see more pixels. The video was rendered at 1280x720, so you can even watch in HD if you want.)
(Enjoy this video? Check out more on the SophosLabs YouTube channel.)
And don't forget to keep your eye on Naked Security between Christmas and New Year. That's when we publish our annual New Years' Eve crossword puzzle - a handy bit of fun for techies who are at work whilst most of their colleagues are on vacation.