[Cryptography] simple codebook for passwords

[Alexandre Anzala-Yamajako]

The idea is good and user friendly. I slightly dislike the "chose a
single secret word" part since users are probably going to pick short
words that are easy to bruteforce.
Also you still need to trust them to erase your qwertycard info
because they already own your first name, last name and email to send
you the card so the only thing standing between you and your
facebook/gmail/twitter account is the secret word