How do you secure APIs in an enterprise SaaS ecosystem?

All answers to this question.

Preventing Broken Object-Level Authorization (BOLA) requires a structural approach to validation. You must never rely blindly on the client-supplied IDs inside incoming payloads. Modern infrastructure relies on passing cryptographically signed JSON Web Tokens (JWT) through OAuth2, combined with backend validation checks that cross-reference the user's authenticated tenant ID against the requested resource ID on every database query. Never let resource identifiers remain easily enumerable.

   Answered 2025-11-11 by Eleanor Vance

Are you guys planning to use an external identity provider like Okta or Cognito, or are you trying to build out the token generation engine inside your own backend services?

   Answered 2025-11-14 by Lawrence Talbot

• Lawrence, building an in-house auth engine for enterprise clients is generally a bad idea. Offloading token management to established, compliant identity providers minimizes structural bugs and ensures advanced authentication flows like SAML and OIDC work seamlessly out of the box.

     Commented 2025-11-15 by Christian Bale

Make sure you implement strict API rate limiting and payload size restrictions at your backend gateway level. This prevents resource starvation attacks and blocks bulk data scraping attempts.

   Answered 2025-11-18 by Bruce Wayne

• Bruce is spot on. Rate limiting is a fundamental pillar of backend security practices because it directly maintains service availability and mitigates modern automated layer-7 DDoS threats.

     Commented 2025-11-19 by Eleanor Vance