

Target sent credit card information to the back of the store unencrypted. Bluetooth didn’t need encryption because nobody can get that close. You could stop 50% of malware by changing the name of your windows directory. Security through obscurity was believed to work, every automated oil rig in the gulf was operating in the clear even into the 2000’s.
Wild times.
I met Captain Crunch around 2012, really nice and still insanely curious about phone systems.