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Types of API penetration testing we deliver

Our API penetration testing combines structured methodology with real-world attack simulation to find vulnerabilities, strengthen your API security and reduce business risk.

Black box API penetration testing

Simulates an external attacker with no internal knowledge. Testing focuses on exposed endpoints, authentication weaknesses, authorisation flaws and data leakage.

Grey box API penetration testing

Uses partial access such as user credentials or documentation to evaluate privilege escalation, token misuse and business logic vulnerabilities.

White box API penetration testing

Uses full access to source code and architecture to identify deep security flaws, insecure configurations and hidden logic vulnerabilities.

REST API security testing

Focused testing for RESTful services to detect injection flaws, broken object-level authorisation, improper rate limiting and sensitive data exposure across endpoints.

GraphQL API security testing

Specialised testing for GraphQL APIs to uncover query abuse, excessive data exposure, schema misconfigurations and authorisation bypass.

OAuth and token security testing

Targeted testing of token generation, storage, expiry handling and OAuth implementation weaknesses that can compromise your API security and user sessions.