If you give a copy of your ID card to others or lose it, your privacy will be revealed. Second, the above address, ID number, age and other information are clear and may be used by criminals. Every citizen should keep a copy of his ID card, and it is really necessary to indicate the purpose on the copy.
Specifically, in order to prevent the disclosure of ID card information and avoid risks, attention should be paid when using the ID card copy: be sure to keep your ID card copy well, tear it into pieces when discarding it, and throw it away separately.