1. Keep all kinds of valid identity documents and their copies, and don't lend them to others easily.

2. When providing a copy of the ID card to others, it is best to indicate the purpose where the copy of the ID card has words, and add the sentence "The copy is invalid".

3. Check the personal credit report regularly and pay attention to your credit record.

4. Once you find that your identity has been stolen, report it to the public security organ immediately.

In short, we need to raise our awareness of self-protection, always pay attention to our personal information and avoid disclosure.