Welcome back—this episode is all about NIST SP 800-53 Rev. 5 CM-4 Impact Analyses, and I break it down in a way that’s practical for RMF, FedRAMP, and real-world change management. The core idea is simple: before you implement any change, you analyze it to determine the potential security and privacy impact. I walk through what that really means in practice—reviewing proposed changes, making sure significant changes are approved by the right organizational official, and documenting the results so you have an audit-ready trail of what was changed, why it was changed, and what risks were considered. I also cover who should be doing these impact analyses (people with the right security/privacy responsibilities and technical expertise) and what they should be reviewing—security and privacy plans, policies and procedures, system design documentation, operational procedures, and even potential impacts to supply chain partners and stakeholders. CM-4 also ties directly into risk assessment: you’re evaluating whether the change creates new risk and whether you need additional controls. Finally, I explain the two enhancements: using a separate test environment before production, and verifying impacted controls after implementation so you don’t accidentally introduce weaknesses. If you’re assessing this control, I show you exactly what to look for—policies, interviews, and change tickets with proper approvals and documented impact analysis.