NEW YORK - An Internet worm that takes advantage of a known flaw with the Windows operating system raced around the world Monday, snarling tens of thousands of computers and causing Internet traffic to slow.
Though Microsoft Corp. had announced the flaw with the so-called Local Security Authority Subsystem Service last month, many computer owners had yet to apply the fix that the company had released.
Unlike most outbreaks, the Sasser worm does not require users to activate it by clicking on an e-mail attachment. Sasser is known as a network worm because it can automatically scan the Internet for computers with the security flaw and send a copy of itself there.
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