Encryption G77, also known as the G77 encryption or simply G77, was an Imperial encryption code reserved only for the twelve Grand Admirals of the Imperial Navy. Grand Admiral Balanhai Savit used the encryption to communicate with the pirates he had hired to steal components from Project Stardust, and the Grysks gained access to it when capturing the way station where the pirates were based. After deducing the nature of Savit's scheme, Grand Admiral Thrawn used the encryption as a piece of evidence that he was guilty.