~/talk

Secure your Modular Monolith by pretending it's a cat

Talkat NDC Copenhagen 2025 · 2025-09-08..09-12· [security, microservices]
slides:none on file

Assumes a modular monolith that later splits modules out to a message broker and gives concrete, implementable defenses: include identity in every message (user ID or claims), use the mediator layer to sign outgoing messages in mediator with asymmetric keys and to validate signatures, encrypt per-recipient fields for partial-message GDPR-safe events, and limit broker abuse with rotate short-lived broker credentials (dynamic users or rotating tokens). Covers token-exchange vs hashed audit blobs, key‑management for versioned keys, and practical constraints for RabbitMQ/Azure Service Bus.

AI-written summary · about

  1. 0:00Introduction to security
  2. 1:11Modular monolith overview
  3. 5:32Identity and message flow
  4. 10:20Authorization principles
  5. 13:38Signed messages
  6. 19:47Preventing unauthorized access
  7. 22:28Managing credentials
  8. 26:11Data personalization
  9. 29:06Token expiration strategies
  10. 34:57Versioning and conclusion
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