Summary - X.1820 (09/2024) - Security requirements for operation of IMT-2020/5G core network to support vertical services

With the development of the IMT-2020/5G system, vertical services have become key scenarios for IMT-2020/5G. In vertical services for smart factories and smart cities that use an IMT-2020/5G network, many user devices use vertical services with massive machine-type communications and ultra-reliable low-latency communications (URLLC).
To support vertical use cases which require ultra-reliability and low latency, some IMT-2020/5G core network functions might be deployed at local sites that are closer to vertical users, while other IMT2020/5G core network functions are still deployed at a central site. Compared with the IMT2020/5G core network deployed as a whole, the IMT-2020/5G core network operating in such deployment may face specific security threats.
To ensure the security of the operation of the IMT-2020/5G core network to support vertical services, specific security threats need to be analysed and relevant security requirements need to be specified.
Recommendation ITU-T X.1820 analyses data security threats, network security threats and physical security threats specific to the operation of the IMT-2020/5G core network, which is deployed at both a central site and local sites to support vertical services. It also specifies the relevant security requirements to mitigate the security threats.