Publishes full build instructions for the ‘Super-Duper Project,’ an early black box circuit that lets a home phone receive long-distance calls free of charge, alongside a renewed boycott call against ITT and its subsidiaries. Read more →

Explains the redesigned 1972 credit card billing code and a separate ‘Code Billing System’ exploit, encourages readers to prank-call Southern Bell’s chief of security, and gives an early write-up of what would become the ‘black box’ for receiving free long-distance calls. Read more →