Are Your APIs Actually Secure?
APIs have become indispensable in modern software. They connect applications, systems, and partners — and in doing so, often process sensitive data and critical business logic. That is precisely why APIs are a popular target for attackers. Standard web application tests often fall short when it comes to API-specific risks. A dedicated API pentest gives you the full picture.
Why Is an API Pentest Different?
APIs have their own attack surface and their own vulnerabilities. Think of authorisation flaws that allow users to access other users’ data, unintended functions that remain reachable, or insufficient rate limiting that opens the door to brute force attacks.
What Do We Test?
Our approach is based on the OWASP API Security Top 10 and goes further where needed. We examine, among other things:
- Authorisation and access control (Broken Object Level Authorization)
- Authentication mechanisms and session management
- Excessive data exposure through API responses
- Rate limiting and protection against abuse
- Injection attacks via API parameters
- Implementation of OAuth, API keys, and tokens
- Business logic flaws and unintended functionality
- Mass assignment and insecure deserialisation
Our Approach
We test your APIs from multiple perspectives: as an external attacker (unauthenticated), as a regular user (authenticated), and as a privileged user. Based on available documentation (OpenAPI/Swagger) or through reconnaissance, we build a test plan tailored to your specific environment.
What Do You Receive?
After the test you will receive a clear report containing:
- All findings with CVSS risk scores
- Concrete recommendations for each vulnerability
- Reproduction steps for your development team
- A management summary
Want to Know Whether Your APIs Can Withstand Attacks?
Contact us for a no-obligation conversation. We are happy to discuss your API environment and how we can set up a targeted test that fits your situation.