Latest Security Articles

API security is not a middleware feature added after an application is designed. In production systems, security boundaries influence the entire request path: where traffic enters the network, how identities are established, how permissions are enforced, which services can communicate, where secrets

APIs expose business operations, data, and infrastructure to networks that cannot be trusted. A single endpoint may accept input from browsers, mobile applications, partners, internal services, automation, and potentially attackers. Authentication alone does not make that endpoint secure.

Authentication and authorization are frequently discussed together, but they solve different security problems. Authentication establishes who or what is making a request . Authorization decides what that identity is allowed to do . Confusing the two creates serious production vulnerabilities becaus

Production APIs are exposed to more than malformed requests. Attackers can manipulate identifiers, inject untrusted input into downstream systems, abuse authentication flows, force expensive application paths, exploit unsafe URL fetching, or overwhelm shared resources with requests that are technica

Cloud applications depend on credentials that cannot safely live in source code or ordinary configuration: database passwords, API keys, signing keys, OAuth client secrets, webhook credentials, encryption material, and third-party service tokens. The difficult problem is not simply storing these val

OAuth 2.0, JWT, and API keys are frequently compared as if they were interchangeable authentication mechanisms. They are not. OAuth 2.0 is an authorization framework, JWT is a token format, and an API key is a credential . A production system may use one of them, combine several of them, or use comp

Production API security is the result of many small architectural decisions working together. Authentication may be correct while authorization is incomplete. Input validation may be strict while downstream dependencies remain vulnerable to resource exhaustion. Secrets may be protected while logs ac