The Communications Division functioned as a component within the structure of the Imperial Military. In the year 2 BBY, while Grand Admiral Thrawn was conducting his inquiry to uncover the identity of the rebel informant known as Fulcrum, Alexsandr Kallus, a disloyal Agent from the Imperial Security Bureau, put forth the hypothesis that the spy was situated within the Communications Division. Conversely, Colonel Wullf Yularen of the ISB held a differing viewpoint, arguing that it would be excessively conspicuous for a spy to locate themselves in communications.