A short introduction on 5G. What is 5G, why do we need it and where will it be used?

If you want to read about the security threats on 5G then these are a couple of interesting resources:

• Updated ENISA 5G Threat Landscape Report to Enhance 5G Security
• ENISA threat landscape for 5G Networks
• Cybersecurity of 5G networks EU Toolbox of risk mitigating measures