As vertical industries are thriving —Vehicle Network, Internet of Things (IoT), AR/VR, and high speed railways, just to name a few — they all demand fast yet ubiquitous network access to gain a new momentum. The rise of new business, new architecture, and new technologies in 5G will present new challenges to security and privacy protection. In 5G business environment, security is a necessary enabler for continuity of the business. Users already realize that security and privacy are important, and they could be aware of the security/privacy service provided to them. It is believed that the extent and strength of the security mechanisms provided correlate with the perceived security level, at least in the long run. Perception is closely related to trust, hence negative changes may happen very quickly (e.g. because of front-page news about observed attacks).