C-3PX was a Cybot Galactica protocol droid reprogrammed to be an assassin droid. In the years leading to the Blockade of Naboo he found himself in the service of Darth Maul, who severely modified the protocol droid to become a security droid for Scimitar, Maul's starship. Maul built 83 different weapons into the droid's chassis and improved his sensor package. After a successful mission, Maul lost the droid into the demolished Bartokk fortress, where he remained, partially dismantled. However, Maul eventually recovered the droid, and 3PX was seized along with the Scimitar when Maul was killed in the Invasion of Naboo. Fearful of the secrets the droid could reveal, Palpatine had its memory wiped and remanded him to Raith Sienar.