Running single Kubernetes clusters is easy, running them at scale brings different requirements. At WhizUs, Dimi's and Andi's day-by-day work is to bring customer's workloads securely and fastly to their audience. One part of this work is to create environments that are not only possible to scale, but also safe to expose and to use. A proper security setup consists of multiple layers which can be hardened in different ways in a Kubernetes environment. One tool to harden a Kubernetes cluster's security is the Security Profiles Operator (https://github.com/kubernetes-sigs/security-profiles-operator). This operator leverages the Kubernetes securityContext and helps you manage and apply security profiles for SELinux, seccomp and AppArmor through your clusters' workload. The Security Profiles Operator was developed with increasing user adoption for security configurations in Kubernetes clusters and simple usage in mind. Dimi and Andi will give you a deep dive into the Kubernetes securityContext and show you how to rollout cluster-wide security configurations.