Tutorials System Design Tutorial
Cloud Security Foundations — Complete Guide
Cloud Security Foundations — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of System Design Tutorial on Toolliyo Academy.
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System Design Tutorial · Lesson 57 of 100
Cloud Security Foundations
Basics ✓ → Scale → Interview
Scale · 2 — Distributed · ~10 min · Module 6: Cloud-Native Architecture
What is this?
Cloud security covers IAM least privilege, secrets management, network isolation, encryption, and continuous posture checks.
Why should you care?
A leaked ShopNest cloud key can empty wallets faster than an app bug.
See it live — copy this example
Sketch the architecture on paper. These lessons focus on concepts and trade-offs.
IAM role per service (no long-lived keys on VMs)
Secrets in vault/KMS — not git
S3/buckets private; encrypt at rest
CIS-style posture scan weeklyRun Example »
This lesson uses terminal or setup steps. Run commands on your computer — the live editor appears on coding lessons.
What happened?
- Identity beats static keys.
- Secrets belong in a manager.
- Public storage is a common breach.
- Automate drift detection.
Practice next
- Replace static keys with roles for ShopNest apps.
- Move DB passwords to a secret store.
- Block public ACLs on media buckets.
- Short-lived credentials only.
- Alert on new public bucket.
Remember
Least-privilege IAM. Secrets outside git. Private + encrypted storage.
Role-based ShopNest deploy
CI assumes a deploy role with minimal rights.
Outcome: Stolen laptop tokens cannot wipe production DBs.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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