Smart connected cars have become data centers on wheels. Their security and privacy issues have attracted widespread attention. This review evaluates security capabilities across major smart car brands in 2026.

Major Security Risks

Remote attack surface: Vulnerabilities in remote unlock, remote start, and other functions. Data privacy: Collection and sharing of driving data, location information, and in-vehicle voice data. OTA update security: Integrity and authenticity verification of over-the-air updates. Autonomous driving AI security: Adversarial examples interfering with perception systems.

Security Standards

ISO/SAE 21434: Automotive cybersecurity engineering standard. UNECE WP.29: UN vehicle cybersecurity regulations. SAE J3061: Automotive cybersecurity development process guide.

Conclusion

Consumers should pay attention to car manufacturers’ security response capabilities and OTA update history. Automakers’ security transparency will become a new competitive advantage.