The SB-20 security breach droid, or SB-20 slicer droid, was a line of droids produced by the underground company called "Illicit Electronics." SB-20 droids were heavily modified R-series astromech droids, especially R1 and R2 units, to which had been added illegal gear and programming suited to espionage and encryption/decryption, such as CodeRifter Encryption Equipment and SecurityViolator security programming. Due to their outward appearance as a common, legal droid, SB-20s could easily gain access to sensitive computer systems, slice into them with their illegal add-ons, and roll away through security checkpoints unnoticed.