Fast Worm Infects Thousands Of PCs

A fast-spreading computer worm similar to last year's massive "Blaster" has struck hundreds of thousands of PCs globally and it remains unclear how many will be infected.

Data security firm F-Secure says the worm, which surfaced at the weekend and is known as “Sasser,” automatically spreads via the Internet to computers using the Microsoft Windows operating system, especially Windows 2000 and XP.

“We’ll be in the dark for quite a while as to how many computers have been affected,” said Mikko Hypponen, Anti-Virus Research Director at F-Secure.

Read more at CNN.com.