Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
We didn't hear about this danger from flying saucer nutcases but from the ultra-respectable British publication The Guardian, which says, "According to a scientific report, planet Earth's computers are wide open to a virus attack from Little Green Men." So far, there is no evidence whatsoever that Linux is immune to alien computer viruses. Could this threat bring the spread of Linux to a halt?
We know Windows is unlikely to fall prey to alien computer intruders because a Forrester study showed that "Microsoft was the only vendor to have corrected 100% of the publicly known flaws during the study's time period" and "Windows has the fewest vulnerabilities and the fewest 'high severity' vulnerabilities of any platform measured."
We know this information is reliable because it didn't come from some bunch of flaky Linux zealots but from Microsoft's own "Get the FUD" site.
What's more, an equally reliable source tells us that, over a year after the above report was released, Windows users have found "a 100 percent improvement in Microsoft's security in the past 12 months."
Obviously, all those Windows vulnerabilities you read about are nothing but the ravings of demented free software communists.