Hackers unravel key to Internet

Hackers have attacked US army and Nasa computers after stealing codes which control the Internet.

The gang is thought to have exposed security flaws in the networks but it is not known how much data was stolen or destroyed.

The attackers are believed to have been based in Europe and have targeted thousands of computers, some serving research labs. The revelation follows the latest arrest over last May's theft of programme instructions for machines which control the Internet.

The suspect, detained in Sweden on Monday, is believed to be a 16-yearold already charged with hacking into a university. The stolen Cisco Systems code was posted on the Net.