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20.500.12592/6r21k0

'C', Chief of the Secret Intelligence Service (SIS): Telephone Tapping

1 Apr 1940

A file of correspondence concerning British telephone surveillance of foreign embassies in London. Documents include a complaint by the Belgian ambassador about the interference to his telephone caused by the tapping equipment; a Foreign Office memorandum about security arrangements for confidential communications; arrangements for the tapping of various embassies including the Soviet, Chinese, Free French, Portuguese, Spanish, Mexican and Turkish; and an intercepted telephone conversation between two Free French officers revealing an unsuitable treatment of classified documents.
security france luxembourg italy surveillance second world war signals intelligence diplomatic missions secret intelligence service dwight eisenhower eavesdropping foreign office orme sargent intelligence organization alexander cadogan peter loxley free french permanent under-secretary's department code-breaking telephone communications classified documents francis davidson
Collection ID
FO1093
Conflict
Second World War
Countries
France Italy Luxembourg
Document Reference
FO 1093/311/2
Document Types
Correspondence Memorandum Intelligence Report
File Reference
FO 1093/311
Identifier
10.1080/swwf.fo1093.0311.002
Keywords
Telephone Communications Eavesdropping Security Classified Documents Diplomatic Missions Free French
Languages
English
Organizations
Foreign Office Permanent Under-Secretary's Department Secret Intelligence Service
Pages
67
Persons Discussed
Alexander Cadogan Francis Davidson Dwight Eisenhower Peter Loxley Orme Sargent
Published in
United Kingdom
Themes
Signals Intelligence Code-breaking Surveillance Intelligence Organization

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