Level 12: The Security Layer
Securing distributed systems: authentication, authorization, encryption, network security, and secrets management.
Welcome to Level 12
Security is not a feature — it is a property of your entire system. This level covers the security patterns that every distributed system must implement, from authenticating users to protecting data at rest and in transit.
| Module | Topic |
|---|---|
| 12.1 | Authentication at Scale (JWT, OAuth 2.0, SSO) |
| 12.2 | Authorization Patterns (RBAC, ABAC, ReBAC) |
| 12.3 | Encryption and Data Protection |
| 12.4 | Network Security and Zero Trust |
| 12.5 | Secrets Management |
| 12.6 | Checkpoint |
Key Takeaway
Security must be designed into every layer of a distributed system — identity, access control, data protection, network boundaries, and secrets. A weakness in any layer can compromise the entire system.
Connect
Start with Module 12.1: Authentication at Scale — establishing identity in distributed systems.