It is forbidden to use the copy of ID card for other purposes. I used to write down the purpose of the copy on the copy to prevent it from being used for other purposes. At present, banks provide humanized services. When providing free copies of ID cards, they specially covered the upper right corner of the ID card with a pre-printed small sign "For banking only, not for other purposes". When copying, they copied the identity information together with this signboard on a piece of paper.