  While the security literature predominantly focuses on the core network, the
enhancement of the security of the beyond fifth generation (B5G) access network
becomes of critical importance. Despite the strengthening of 5G security
protocols with respect to LTE, there are still open issues that have not yet
been fully addressed. In parallel as we move gradually away from the standard
client-server networking paradigm and enter a new era of truly E2E quality of
service (QoS), service level agreements (SLAs) in the near future will be
expected to include guarantees about the quality of security (QoSec) as well.
Incorporating context awareness in QoSec is projected to allow handle more
efficiently aspects related to identifying the risk or threat level and the
required security level. Finally, as novel sensing and intelligence
capabilities are envisioned in 6G, security solutions from the palette of
physical layer security can emerge, particularly for massive machine type
communications involving large scale low-end IoT devices.
