False radio traffic for enemy signals intelligence, and information gathered by civilian informers in Egypt, increased the Axis impression that these units were real and present in the theatre. Most of the civilian agents, however, were double agents controlled by 'A' force through a network called Cheese.
Enemy spies created false radio communications to make it seem like real units were present in the theater. Information from Egyptian civilians also reinforced this belief. Nonetheless, most of these informants were actually double agents managed by 'A' force using a system known as Cheese.