ANNEX DRAFT TELEGRAM From: A.M.S.S.O. To: J.S.M. Washington. C.O.S. (W) .... You are doubtless aware that a great deal of useful intelligence is leaking to the Japanese as a result of the insecurity of Cyphers used by Chinese Attaches. This is causing us grave concern. 2. The matter has been the subject of exchange of telegrams between J.I.C. here and Washington over a number of months, of which O'Connor can give you full details. 3. We are convinced that the problem is mainly a Cypher problem and consequently that the remedy lies in that direction.
- Collection ID
- CAB81
- Conflict
- Second World War
- Countries
- Ceylon
- Document Reference
- CAB 81/128/62
- Document Types
- Report Correspondence
- File Reference
- CAB 81/128
- Identifier
- 10.1080/swwf.cab81.0128.062
- Keywords
- Cyphers Security Secrecy Communications Leakage Of Information Chinese Intelligence Services Japanese Intelligence Services Anglo-american Relations Anglo-chinese Relations Sino-japanese War
- Languages
- English
- Organizations
- Chiefs of Staff Joint Intelligence Sub-Committee
- Pages
- 3
- Persons Discussed
- Victor Cavendish-Bentinck Francis Inglis Stewart Menzies John Sinclair
- Published in
- United Kingdom
- Themes
- Signals Intelligence Code-breaking International Relations
