Legal analysis: If a resident's ID card is lost and is fraudulently used by others, the fraudulent user and relevant departments should bear the corresponding legal responsibilities, and the person who lost the ID card does not need to bear the responsibility for the behavior that has not been implemented. Whoever uses another person's identity card fraudulently shall be fined between 200 yuan and 1,000 yuan by the public security organ, or detained for less than 10 days. If there are illegal gains, the illegal gains shall be confiscated.

Legal basis: Article 17 of the Law of the People's Republic of China on Resident Identity Cards commits one of the following acts, and the public security organ shall impose a fine of more than 200 yuan but less than 1,000 yuan, or detain it for less than 10 days. If there are illegal gains, the illegal gains shall be confiscated: (1) using another person's identity card or using a fraudulent identity card; (2) buying, selling or using forged or altered identity cards. Forged or altered identity cards and fraudulent identity cards shall be confiscated by public security organs.