Practical steps to minimize key exposure using AWS Security Services

This article provides a comprehensive guide to minimizing exposure of AWS long-term credentials using layered security controls and AWS services.

• Exposed long-term credentials remain the top entry point for threat actors in security incidents
• Audit access keys regularly using credential reports to identify unused or stale credentials
• Use CodeGuru Security and Trusted Advisor to detect exposed secrets in code repositories
• Implement IAM Access Analyzer to identify and remove unused access permissions
• Deploy Service Control Policies (SCPs) to enforce network perimeters and deny credential creation
• Use Resource Control Policies (RCPs) to restrict data access to trusted networks and identities
• Restrict SSH/RDP ports; use Systems Manager Session Manager for secure remote access
• Deploy Network Firewall and NACLs for subnet-level protection and traffic filtering
• Use Amazon Inspector to scan for vulnerabilities and unintended network exposure
• Implement AWS WAF fraud prevention rules to block account takeovers and compromised credentials
• Automate key rotation every 90 days using AWS Secrets Manager with Lambda integration
• Enable Amazon GuardDuty to detect anomalous IAM activity and compromised credential sequences

A defense-in-depth strategy combining detection, prevention, network controls, and operational automation significantly reduces credential compromise risks until migration to temporary credentials is feasible.