"An attack by fast-spreading malicious code targeting computer servers has dramatically slowed internet traffic. The attack - by what is known as a computer "worm" - has interfered with web browsing and e-mail delivery.
Computer experts said the slowdown on Saturday was similar to the impact of the "Code Red" virus, which brought internet traffic to a halt in the summer of 2001.
The malicious code targets servers that direct traffic on the internet and does not infect home computers."