The National Security Agency (NSA) and the Cybersecurity and Infrastructure Security Agency (CISA) have published comprehensive recommendations for strengthening the security of an organization’s Kubernetes system to help companies make their Kubernetes environment more difficult to compromise. This 52-page cybersecurity technical report offers practical guidance for admins to manage Kubernetes securely, focusing on the common three sources for a compromised Kubernetes environment.

Kubernetes version 1.22, the latest release of Kubernetes, comes with bug fixes, enhancements, and new features that make the platform more stable, scalable, and user-friendly. There are a total of 56 improvements with different maturity levels and a considerable number of API removals. In this article, I’ll focus on the security-related changes in Kubernetes as well as a few other significant changes in Kubernetes API and usability.