During the Cold War, in the mission known as Operation Silverplate, funding for Eagle's terrorist network, an anti-Sith Empire group, was traced to the planet Alderaan. Agent Cipher Nine was then, sent to identify and eliminate the source. Imperial Diplomatic Service's member Vector Hyllus was chosen to assist the agent so they gathered upon the Agent's arrival to Alderaan.
In due time, Cipher Nine and Hyllus identified the local negotiator Denri Ayl and Baroness Chay Cortess as primary funders of the terrorist network. However, House Cortess was not implicated as a whole though appropriate responses and precautions were taken by the Sith Empire. After the mission's success, Vector Hyllus became an Imperial asset and was granted transfer from the Diplomatic Service.
- Star Wars: The Old Republic (First appearance)