API security

Test API endpoints against authorization, data access and abuse-case risks.

In modern web and mobile products, the real risk often lives in API behavior. Broken authorization, excessive data exposure and missing rate limits become direct business risk.

AuthorizationOwnership approval
PriorityCVSS + business impact
DeliveryEvidence-led report

Positioning

How we measure API risk

VefaSec API security covers OWASP API Top 10, BOLA, token security, rate limiting and abuse-case checks across REST, GraphQL and mobile API endpoints.

01

Endpoint mapping

Authenticated and anonymous endpoints, parameters, data types and role behavior are mapped.

02

Authorization testing

BOLA, IDOR, privilege escalation, tenant separation and role-based access flaws are validated.

03

Abuse-case analysis

Rate limits, brute force, bulk data extraction, token lifetime and error-message leaks are reviewed.

API security output

  • Endpoint-level risk matrix
  • PoC and request/response evidence for authorization flaws
  • Token, rate-limit and data-minimization recommendations
  • Developer-ready remediation notes

SEO cluster

General security topic cluster

Frequently Asked Questions

Do API tests require user accounts?

Authenticated endpoints require test users or limited-privilege accounts.

Do you test GraphQL APIs?

Yes. GraphQL introspection, authorization, query depth, batching and data exposure risks can be included.