During the age of the High Republic Era, the Jedi Order utilized security droids at their temple located on the planet of Batuu. At that time, an incident happened inside the temple: the Ancient Sith Runestone was found, but it corrupted and caused the Jedi to turn on each other. The security droids were instrumental in assisting the Padawan named Ady Sun'Zee in getting rid of the corrupted demlins that were inside the temple.