API Security Testing

APIs expose deep backend logic and sensitive data directly to the internet, often without the protective layer of a traditional web frontend. Standard web scanners frequently miss API-specific logic flaws and authorization issues. We use the OWASP API Top 10 to target these unique vulnerabilities, ensuring your backend services are not an open door for attackers.

BOLA, also known as IDOR, occurs when an API allows a user to access or manipulate objects, like accounts or files, belonging to another user. This is often achieved by simply changing an ID parameter in the API request. We test every endpoint to ensure that the system strictly validates that the requesting user has the right to access the specific object requested.

Many APIs send back all database fields to the client, relying on the frontend to filter what the user actually sees. We test to ensure your APIs only return the exact data necessary for the request, preventing sensitive data leakage at the protocol level. This minimalist approach to data transfer is a key defense against accidental information disclosure.

Yes, we have specialized methodologies for modern protocols like GraphQL and gRPC, which have unique structures and attack vectors. Unlike REST APIs, these protocols can be vulnerable to complex nested queries that cause Denial of Service or reveal hidden schema details. Our testing ensures that these high-performance communication layers are as secure as they are fast.

Without proper rate limiting, an API is highly vulnerable to brute-force attacks, credential stuffing, and Denial of Service (DoS) attempts. We test to ensure your APIs appropriately throttle excessive requests and have protections against automated scraping. This ensures your services remain available for legitimate users and are not overwhelmed by malicious traffic.