§ Miss. Emma NicholsonTo ask the Chancellor of the Exchequer how many instances have been detected in the 599W Inland Revenue computer system of computer (a) hacking, (b) viruses, (c) logic bombs, (d) Trojan horses or (e) other types of computer misuse, whether perpetuated by authorised or unauthorised users of computers; and how many unsuccessful attempts have been recorded.
§ Mr. Norman Lamont[holding answer 24 April 1989]: It is not the policy of this Department to make public details and circumstances of computer security incidents, their perpetrators and their success or failure, since such information would be of assistance to potential attackers.