Monitoring OAuth 2.0 & Secure Web API Authentication Flows
OAuth 2.0 is often treated as a solved security problem; configured once, then forgotten. In reality, OAuth-based authentication is one of the most fragile dependencies in modern API ecosystems. When OAuth breaks, APIs don’t just degrade gracefully; they often fail completely. For DevOps and engineering teams, OAuth 2.0 authentication sits before application logic, before business rules, and before observability inside the service itself.