Yeah this was a big one. You’d get a mobile phone with voicemail enabled, and you could call 123 from your phone to collect your voicemails without a PIN. You

Yeah this was a big one. You’d get a mobile phone with voicemail enabled, and you could call 123 from your phone to collect your voicemails without a PIN. You could also call something like 07700007123 and then it would ask you to type your phone number and remote access PIN. Almost nobody knew that you could do that, and so almost nobody changed their remote access PIN from the default 1111 or 1234 or 0000.