Phase 3: Infrastructure Security

This phase focuses on how to secure the underlying AWS infrastructure components that support your applications and data. For security specialists, protecting these foundational layers is paramount for overall cloud security.

The First Principle is that robust infrastructure security involves implementing layered controls at the network and compute levels, applying security best practices to protect foundational AWS resources from unauthorized access, configuration flaws, and malicious attacks. This is crucial for a strong defense-in-depth strategy.

You will learn about network security design (VPC controls, Network Firewall, WAF, Shield) and compute security (EC2, containers, serverless).

The focus is on comprehending how to implement and maintain these infrastructure-level security measures, which is crucial for the SCS-C02 exam.

Scenario: You need to secure a complex application running on EC2 instances and Lambda functions. This involves protecting network boundaries, hardening compute environments, and securing application endpoints.

Reflection Question: How does robust infrastructure security, by implementing layered controls at the network and compute levels, fundamentally protect foundational AWS resources from unauthorized access, configuration flaws, and malicious attacks as part of a strong defense-in-depth strategy?