Energy theft by manipulating smart meters in the power grid is illegal, technically complex and risky. Smart meters typically have multiple security measures to prevent tampering and fraud, including data encryption, monitoring of abnormal activity and real-time data transmission. Although some people may try to manipulate meters through various means (such as physical tampering or hacking techniques), such behavior is not only illegal, but may also lead to serious legal consequences, including fines and imprisonment. In addition, power companies will regularly inspect and monitor meters and take corresponding measures if abnormal usage is found. Therefore, although there may be certain technical loopholes, from a legal and ethical point of view, any form of energy theft is unacceptable, and energy should be obtained and used through legal channels.