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I remember when pushing the boundaries on computer networks was the accepted norm ("Was Janet 'raped' by a nerd?", THES , August 10). Today's internet activities require confidence and reliability of the network: precisely the things misuse destroys. When motorways were first built they had no speed limit but now those who drive excessively fast are regarded as irresponsible fools and criminals. If the internet is ever to be more than a toy, then attitudes to it need to undergo a similar change.

Andrew Cormack
Janet computer emergency response team, Ukerna