Recently a bunch of news came up about Dell's Ubuntu page (http://www.dell.com/ubuntu) about line item #6 which stated that Ubuntu Linux is safer than Windows, and Dell later retracted that statement, and plainly said that Ubuntu is "safe".
It seems however they have not retracted similar statements from the "Linux 101" video on the same Ubuntu page. In the video, a speaker mentions the following comments about Ubuntu:
"It's safe and secure. Over 95 percent of viruses, spyware and other types of malware are designed and targeted to attack Microsoft Windows. So, by definition, if you're not running Microsoft Windows and if you're running Linux, you just don't have to worry about malware and viruses and spyware."
"There's a lot of reasons consumers like Linux. No. 1: it's a powerful operating system. It can do lots of things very fast."
"It's extremely stable... It's very rare for the system to lock up or freeze... there's no Blue Screens."
I'm not sure if this is because it would be a lot more work to redo the video, or if Dell (and probably Microsoft) doesn't think many people will watch the video into the 2 minute mark where these statements are made.