Usually, when I pay with a check, I write it out and sign it, or I direct my bank to send it on my behalf. But what if a check is drawn on my account but I didn’t write it, sign it, or tell my bank to send it? It can happen if someone has your bank account number: they can use your number to create a check that takes money out of your account. Now, if you’d already agreed to the charges, there’s no problem. But what if you didn’t? That means this...