Changing the footage captured by security cameras without being detected is illegal and unethical, and will seriously interfere with normal surveillance order and security, so such methods should not be sought or implemented. Security cameras are used for important purposes such as maintaining public safety, ensuring the order of places, and preventing crimes. Tampering with surveillance footage will undermine the reliability and effectiveness of the surveillance system, harm the public interest and the safety rights of others, and may result in serious legal consequences, including fines and imprisonment. We should abide by laws, regulations and ethical standards to jointly maintain a good social order and a safe environment.