The Cybersecurity and Infrastructure Security Agency (CISA) has announced the joint National Security Agency (NSA) and CISA publication of the final of a four-part series, “Security Guidance for 5G Cloud Infrastructures.” “Part IV: Ensure Integrity of Cloud Infrastructure” focuses on platform integrity, microservices infrastructure integrity, launch time integrity, and build time security to ensure that 5G cloud resources are not modified without authorization. This series was published under the Enduring Security Framework (ESF), a public-private cross-sector working group led by NSA and CISA.