I’m old fashioned, I still have a checkwriting machine on my desk at home and one one in the office. Every check is processed through the machine which embosses the amount by perforating the check and inking in red and blue. It can not be altered by hand.
My children used to love helping me pay bills when they were little. Inserting the check, pushing the buttons down in each column for the amount and pulling the handle down to cut the check.