Though Bruce hadn’t recognized my voice, I sure did know who he was. He’d been the target of social-engineering scams by me and other phone phreaks for years, and had been stung enough times that he had grown suspicious and protective. So anytime he got a call from somebody he didn’t know who claimed to be a company employee, he’d ask for a callback number—and it had better be a number he recognized as being internal to Pacific Bell. He’d ring off and dial you back.