Intelligent networked vehicles are the products of the deep integration of new generation network information technology such as electronics，transportation，automobiles and artificial intelligence，big data，and the Internet of Things，and their level of intelligence and networking is constantly improving，while bringing about various types of security threats. This section summarizes the safety monitoring of in-vehicle communication，the safety monitoring of off-vehicle communication，the safety detection of in-vehicle parts，the safety detection of vehicle-machine applications，the security detection of internet-connected cloud，the security detection of V2X，the OTA security，the data security detection and the algorithm security detection，etc.，and expounds the importance of intelligent networked vehicle network security and data security monitoring. The common methods of safety risk assessment of intelligent connected vehicles are sorted out，including EVITA，TARA，TVRA，OCTAVE and other assessment methods.