aws-security-engineering-core

Modular Terraform Infrastructure-as-Code (IaC) focused on building and understanding real-world AWS security architecture.

This repository contains bare, minimal, and explicit Terraform modules that model how security controls are designed, deployed, and connected in AWS. It is not a production framework or an opinionated stack. It is an engineering reference.

The goal is to treat cloud security as a system, not a checklist.

---

Purpose

This repo exists to:

• Break cloud security into clear, practical engineering domains
• Build Terraform modules that represent real security controls
• Understand how detection, identity, data protection, governance, and response connect
• Practice security-first infrastructure design
• Create reusable building blocks for automation and compliance workflows

---

Design Philosophy

                   ┌─────────────────┐
                   │  Identity (IAM) │
                   └─────────┬───────┘
                             │
                 ┌───────────▼───────────┐
                 │ Infrastructure Layer  │
                 │ VPC, SG, Isolation    │
                 └───────────┬───────────┘
                             │
               ┌─────────────▼─────────────┐
               │ Detection & Visibility    │
               │ CloudTrail / GuardDuty    │
               └─────────────┬─────────────┘
                             │
                 ┌───────────▼───────────┐
                 │ Incident Response     │
                 │ EventBridge / Lambda  │
                 └───────────┬───────────┘
                             │
                     ┌───────▼───────┐
                     │ Governance    │
                     │ Compliance    │
                     └───────────────┘
                     ```

This repository is intentionally:

* **Minimal** – no unnecessary abstractions
* **Explicit** – every resource is visible and understandable
* **Modular** – each service or pattern stands on its own
* **Educational** – focused on learning security architecture, not shipping products
* **Composable** – designed to integrate with policy engines, CI/CD pipelines, and remediation systems later

No frameworks.
No magic.
Just raw security engineering.

---

### Planned Domains

The repository is organized around six core security domains:

1. **Continuous Detection & Visibility**
   Logging, monitoring, threat detection, investigation, and event correlation.

2. **Identity & Access Management (IAM)**
   Least privilege, trust boundaries, identity controls, and access governance.

3. **Incident Response & Automation**
   Event-driven response patterns and containment workflows.

4. **Infrastructure Security**
   Network protection, service isolation, and platform hardening.

5. **Data Protection**
   Encryption, secrets handling, and sensitive data controls.

6. **Governance, Risk & Compliance (GRC)**
   Policy enforcement, compliance mapping, and audit readiness.

---

### What This Is Not

* Not a production-ready framework
* Not an opinionated landing zone
* Not a full platform

This is the **core layer**:
the place where security architecture is learned, built, and reasoned about.

Think of it as the skeleton of a cloud security platform.