MV-33 security droids represented a specific security droid type manufactured by the Tagge Corporation. In the period spanning from 3 ABY to 4 ABY, these units, still awaiting thorough quality assurance, were deployed on the Casus Belli. Following the infection of the ship's droid complement by the Scourge, a pair of MV-33 security droids initiated an assault on Lapin Tagge, the secretary to the company's leader, Lady Domina Tagge, along with the renegade archaeologist Doctor Chelli Lona Aphra and the assassin Just Lucky; their existence was terminated by Domina.