@thatguyoverthere @BrodieOnLinux
Just use a pencil or pen to tick out those you used. #ProblemSolved
Sarcasm aside, they also allow and encourage me to store my recovery codes seperately, thus they can also allow me to do the same with #TANs to #2FA, and with #iTAN they mitigate or at least vastly reduce the success rate of shouldersurfers gaining valid TANs...