The EU’s cyber security agency ENISA has published “ENISA threat landscape for 5G Networks” report that draws an initial threat landscape and presents an overview of the challenges in the security of 5G networks.
It presents 5G architecture, the identification of important assets, the assessment of threats affecting 5G, the identification of asset exposure and an initial assessment of threat agent motives.
You can download the document from this page:
There is also a 5G Cybersecurity Hackathon starting in Oulu Finland
Here is my news article on both of those in Finnish