Imperial Intelligence and Security Bureau offices

The Imperial Intelligence and Security Bureau offices were a series of offices that were located in the Citadel Tower of the Imperial security complex, which belonged to Imperial Intelligence and the Imperial Security Bureau. The RA-7 protocol droid 4D6-J-A7 was an administrative assistant there. One office that made up the location was the Imperial Office of Security.

Behind the scenes
The Imperial Intelligence and Security Bureau offices were first mentioned in the 2016 reference book Star Wars: Rogue One: The Ultimate Visual Guide.