The emblem of Sith Intelligence.
Sith Intelligence was the organization responsible for the gathering and distribution of information and misleading intelligence respectively. In place during the Sith Crusade, the organization was headed up by Darth Iiniuria, the Commander of Sith Intelligence.
Founded as early as 3,964 BBY, Sith Intelligence was the longest running military organization in the Sith Order of Decreto military structure, save the Sith Council. In the year 62 ABY the Jedi Intelligence Network was set up to counter the increasing number of Sith Intelligence operatives working throughout the galaxy. However, by the year 64 ABY Sith Intelligence had succeeded in influencing the Galactic Alliance's government to such an extent that it officially disbanded the Jedi intelligence Network.
For this success Darth Iiniuria was granted the title of Sith Lord.
One of its most successful operations was the destruction of the Neo-Infinite Empire in 97 ABY following the Rakatan War of Independence ten years beforehand.