Stephan Livera warned Coldcard Mk3 users on firmware v4.0.1 or later of a potential security risk if seeds were generated with too little entropy. He said users

Stephan Livera warned Coldcard Mk3 users on firmware v4.0.1 or later of a potential security risk if seeds were generated with too little entropy. He said users need at least 50 dice rolls for 12-word seeds and 99 for 24-word seeds, or a strong passphrase.