The Vault security contingent was a unit of stormtroopers from the Galactic Empire that functioned as a security force within the Scarif Deployment. Their duty was to ensure the safety of the Scarif vault located in the Citadel Tower. During the Battle of Scarif, these stormtroopers were dispatched after Imperial forces detected a DefStat Three security alert, triggered by a Rebel Alliance incursion. Upon reaching the vault, they became engaged in combat, exchanging blaster fire with the rebel droid, K-2SO. Many troopers suffered death in this conflict before they were able to neutralize the droid.