But you don't know the best thing. In the USA checks have your account number. A number you are supposed to keep secret to prevent ACH fraud. The first thing

But you don't know the best thing. In the USA checks have your account number. A number you are supposed to keep secret to prevent ACH fraud. The first thing Banks ask you if you try to address any fraudulent transaction is whether you've shared that number with anyone. The number that is in every check! It's insanity.