Originally Posted by Darth InSidious
All the Holocrons *you know of* are in the Jedi Archives. But how would you know if a few escaped Atris' claws, or the later attempts to collect them all? The surface of Tython is littered with Jedi artefacts, and they are not so uncommon on other planets either. Finally, there are techniques in the Force where one can make oneself as if invisible to others...to the point where a Sith may enter the Jedi Archives and leave carrying a holocron.
Ahh.... that technique, I have used it once before, but other Force Sensitives will be able to feel your presence therefor, enabling them to take the Holocron back....