This overview defines a model for thinking about Kubernetes security in the context of Cloud Native security.
Warning: This container security model provides suggestions, not proven information security policies.  The 4C's of Cloud Native security You can think about security in layers. The 4C's of Cloud Native security are Cloud, Clusters, Containers, and Code.
Note: This layered approach augments the defense in depth computing approach to security, which is widely regarded as a best practice for securing software systems.