1. Clearly mark the purpose: on the copy of the ID card, indicate the purpose of the copy, such as "for rent only, it is invalid for other users", and the content should be as detailed as possible, but don't cover the ID number and name.
2. Location and method of marking: Some strokes should cross or touch the words on the ID card to prevent them from being cut and used again. Generally write three lines, and draw a horizontal line after each line to avoid theft. At the same time, use blue or black ballpoint pen or signature pen for marking, and try to avoid using red or other bright colors to avoid attracting unnecessary attention.
3. Marking time and signature: At the end of marking, be sure to write the marking time and your signature, which can further ensure the security and reliability of the ID card copy.
4. Handle the copy carefully: If you need to discard the copy of your ID card after use, it is recommended to tear it up first to prevent it from being used maliciously by others. The above marking method can effectively prevent the copy of ID card from being used maliciously by others and protect the safety of personal information. At the same time, in the process of renting a house, we should also pay attention to providing a copy of our ID card in person to avoid spreading it through intermediaries or other unreliable channels and reduce the risk of information leakage.