CYPHER SECURITY COMMITTEE. 9. There is in existence at present a Cypher Security Committee subordinate to the Joint Intelligence Sub-Committee. On the Cypher Security Committee all cypher using services and departments are represented. It is proposed to make the following changes in the constitution of the Cypher Security Committee:(1) It will in future be responsible to the Cypher Policy Board, and not to the Joint Intelligence Sub-Committee. (2) The Secretary of the Cypher Policy Board will take over the Chairmanship.