Security Challenges and Recommendations in 5G-IoT Scenarios.

The fifth-generation (5G) mobile communication systems are already a reality. This communication technology can increase and simplify the adoption of the Internet of Things (IoT) applications (e.g., industrial IoT), given that it will provide the means to connect up to one million devices in a squared kilometer. Many of these applications can generate sensitive data, which requires the adoption of security mechanisms, and these mechanisms must consider the computational limitations of the devices. Considering that IoT devices under security attacks can access the 5G infrastructure, this paper presents recommendations and challenges regarding security in IoT devices. It also presents a threat model and a few common attacks, classifying them with the STRIDE model and CVSS and discussing how they can impact the 5G infrastructure .