- "What model are you? ISB-one-twenty?"
"One-twenty? Don't insult me. My processor speed is fifty-point-three-two times faster than the one-twenty's." - ―Chewbacca and ISBy
ISBy was a slicer droid of a model that it bragged had a more powerful processor—the GwendoLyn Six—than the ISB-120. It was employed by the interrogation droid known as "It" to break into a datapad which was owned by Leia Organa Solo. ISBy was destroyed when Chewbacca and his wife, Mallatobuck, tried to rescue their son Lumpawarrump from IT's plans.
Behind the scenes
The Complete Star Wars Encyclopedia inaccurately labels ISBy as an ISB-120, despite the text of A Forest Apart stating otherwise.