Finnish data security firm F-Secure said in a report that computer virus writers have unleashed a new worm on the internet.

This worm was released in wild yesterday when it was delivered through mails to thousands of unsuspecting users.

They call this worm the Storm Worm and it comes in a mail with the subject title: "230 dead as storm batters Europe".

The email message comes loaded with the infected attached file which can infiltrate computer systems.

Mikko Hypponen, head of research at Finnish data security firm F-Secure spoke about this new worm threat: "What makes this exceptional is the timely nature of the attack."

He further claimed that most users would not be able to notice the back door created by the worm on their computer that can be exploited later for harmful purposes.