WhatsApp website: > This code can be found in the contact info screen, both as a QR code and a 60-digit number. These codes are unique to each chat and can be

WhatsApp website: > This code can be found in the contact info screen, both as a QR code and a 60-digit number. These codes are unique to each chat and can be compared between people in each chat to verify that the messages you send to the chat are end-to-end encrypted. Security codes are just visible versions of the special key shared between you - and don't worry, it's not the actual key itself, that's always kept secret So basically it's just a random unique number and could have no relationship to the key whatsoever. We'll never know.