HC Deb 14 May 1998 vol 312 c161W
Mr. Baker

To ask the Prime Minister what steps are being taken to ensure that software used by the security services obtained from outside the United Kingdom does not contain trapdoors, allowing unauthorised access to sensitive information. [41193]

The Prime Minister

[holding answer 8 May 1998]: In common with other Government Departments, the intelligence and security services, when procuring software to process sensitive information, evaluate it against criteria which include its ability to deny unauthorised access.