In theory, there may indeed be vulnerabilities in the vehicle's onboard system, and malware can use these vulnerabilities to invade the vehicle's information system and interfere with the normal operation of the vehicle. This is also an important issue in recent years in the study of automotive network security. The following points can help understand this issue: 1. The complexity of the vehicle system: Modern vehicles integrate more and more electronic control units (ECUs), interconnected functions, and wireless communication modules. As the system's interconnectivity increases, when a subsystem has a vulnerability, attackers may try to invade from one entry point and affect other key systems. 2. Existing research examples: In the past, security researchers (such as some cases in 2015) have demonstrated that by invading the vehicle's communication bus (such as the CAN bus), it is theoretically possible to control certain vehicle functions. These studies are mainly aimed at discovering security vulnerabilities and then promoting manufacturers to improve security protection measures. 3. Difficulty and risk: To truly achieve comprehensive control of a moving vehicle, it is necessary not only to have a deep understanding of the vehicle's hardware architecture, communication protocols, and software systems, but also to have corresponding breakthroughs in the isolation and protection mechanisms between systems. Most modern vehicles are designed to take certain isolation measures to protect the connection between the driving safety area and the entertainment or information system. 4. Law and ethics: It should be clear that any attempt to attack the car system through malware is illegal, may cause serious personal injury and property damage, and will face severe legal punishment. Automotive security researchers usually carry out vulnerability detection and security assessment work with legal authorization and cooperation with relevant manufacturers, with the aim of improving overall safety. In general, although it is theoretically possible to exploit vulnerabilities to cause the vehicle system to lose control, in fact, to achieve real-time control of the car through malware, it is necessary to overcome extremely high technical difficulties and will also touch upon serious legal and ethical issues. Researchers and manufacturers are working to improve security protection measures to reduce such risks.