I just finished listening to Cryptonomicon (using Libby and someone else's library card). https://wikiless.org/wiki/Cryptonomicon?lang=en
I see why it is required reading for management at big tech companies. It is both very entertaining and educational about the tactics of espionage and the importance of encryption. The extensive and creative tactics to prevent their targets from suspecting they are being spied on are insightful. Does anyone have other recommendations of the like?