Nasty new viruses that use devious tricks to infect computers will become even more common in the future. The anti-virus software company Sophos says that the Nimda worm was the most widespread virus this year, even though it first appeared late in the year, in September.

?Nimda was effective because it could infect computers with a variety of techniques,? says Graham Cluley, Sophos senior technology consultant. ?It is likely that we will see more multiple-pronged attacks in the future.?

Sophos warns that personal computer users are increasingly likely to be the victims of hacker attacks, due to the growth of ?always-on? high-speed internet connections, such as Roadrunner and DSL.
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