API Security Assessment

APIs power modern apps — but they also increase attack surface. API Security Assessments analyze authentication and authorization mechanisms, data exposure patterns, abuse and business-logic risks, and misconfigurations that can expose sensitive data.

APIs often expose sensitive data and operations. Weak auth, improper rate-limits, or excessive data returned by endpoints can be chained for account takeover or mass data exfiltration. Regulatory and privacy requirements also make API hygiene essential.

Companies with public or private APIs, microservice architectures, mobile backends, or any service exposing machine interfaces to partners or clients.

Authentication flows, token handling, role-based access control, object-level authorization, pagination/parameter issues that leak data, mass assignment, rate-limit abuse, replay/tampering and insecure CORS or ACLs.

Detailed findings with request/response PoCs, recommended fixes, attack trees to show exploit paths, and optional CI integration guidance for ongoing checks.

Small API surface: 2–4 days. Medium: 5–10 days. Pricing is scope-based and depends on authentication complexity and the number of endpoints.

We discovered unprotected admin API endpoints and a chain of API calls that allowed escalation from read-only user to privileged operations. Fixes included stricter authorization checks and token-scoped access controls.