The 5 A's of Identity and Access Management (IAM)—Authentication, Authorization, Administration, Audit Logging, and Accountability—form a comprehensive framework to strengthen enterprise security by managing digital identities and controlling access to critical resources. Authentication verifies user identities, often enhanced by multi-factor methods; Authorization ensures users have appropriate permissions based on roles; Administration centralizes identity governance; Audit Logging tracks activities for compliance and threat detection; and Accountability enforces responsibility and oversight. CMS IT Services emphasizes adopting these principles to build resilient, secure IAM systems that protect data flows across complex digital ecosystems.

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