Slowly and steadily people are starting to believe that containers and Kubernetes are now as secure as physical and virtual machines.

We had the chance to see quite a bit of clusters in our years of experience with kubernetes (both managed and unmanaged - on GCP, AWS and Azure), and we see some mistakes being repeated. No shame in that, we’ve done most of these too!
I'll try to show the ones we see very often and talk a bit about how to fix them.