This AWS re:Invent 2023 session explores building a comprehensive security solution using AWS security services. Presenters discuss challenges of multi-vector threats and demonstrate how to integrate services like GuardDuty, Network Firewall, WAF, and Shield for improved threat detection and mitigation. A real-world example from DBS Bank showcases implementation strategies for automating security responses and correlating alerts across different AWS security tools. The session highlights the importance of visibility, correlation, and automation in creating an effective cloud security posture.