Application Programming Interfaces (APIs) are a foundational element of modern digital architectures. They enable communication between web applications, mobile apps, cloud services, and third-party systems. As organizations increasingly adopt microservices, cloud-native platforms, and integrations with external partners, APIs have become a high-value target for attackers. Weak or improperly secured APIs can expose sensitive data, bypass authentication controls, and provide direct access to core systems. Shavit Group – Security Defense & Cyber provides API Penetration Testing services designed to identify real security risks and demonstrate their practical impact.
API Penetration Testing is a focused security assessment that evaluates the security of API endpoints, authentication mechanisms, authorization logic, and data handling processes. Unlike traditional application testing, API security requires deep understanding of business logic, data flows, and trust relationships between services. The objective is to identify vulnerabilities that allow attackers to manipulate requests, escalate privileges, or access unauthorized data.
Testing Methodology and Approach
API penetration testing is performed according to internationally recognized standards and best practices, including OWASP, NIST, and SANS, with specific alignment to modern API security risks. Each engagement is tailored to the API architecture, communication protocols, and usage scenarios.
The testing process includes API discovery and mapping, authentication and token handling analysis, authorization enforcement testing, input validation, rate limiting evaluation, and business logic abuse. Both REST and GraphQL APIs are assessed, along with backend services and third-party integrations.
Black Box, Gray Box, and White Box testing models are supported, allowing organizations to choose the level of visibility and depth that best aligns with their risk profile and development lifecycle.
Scope and Coverage
API Penetration Testing covers a wide range of environments and technologies, including:
- Public and internal APIs
- Microservices and service-to-service communication
- Mobile and web application backend APIs
- Cloud-based and SaaS integrations
- Third-party and partner-facing APIs
Testing focuses on identifying common and advanced API vulnerabilities such as broken object level authorization, broken authentication, excessive data exposure, injection flaws, insecure deserialization, improper rate limiting, and logic-based access control weaknesses.
Reporting and Remediation Support
Each API penetration testing engagement concludes with a detailed and actionable report. The report includes a clear description of findings, technical evidence of exploitation, and an explanation of potential business impact. Vulnerabilities are prioritized based on risk, exploitability, and potential damage to support effective remediation.
Remediation guidance is provided with a focus on secure API design, proper authentication and authorization enforcement, input validation, and monitoring. Re-testing services are available to validate fixes and ensure that vulnerabilities have been properly resolved.
Why Choose Shavit Group
API security demands precision, deep technical understanding, and the ability to analyze complex business logic across distributed systems. Shavit Group applies an intelligence-driven and offensive security approach based on real-world operational experience.
The testing team consists of professionals with backgrounds in military, intelligence agencies, special forces, and law enforcement, enabling realistic attack simulation and meaningful security insights. This expertise allows organizations to confidently expose APIs while maintaining strong security controls.
Trusted by organizations across government, finance, technology, and critical infrastructure sectors, Shavit Group delivers API penetration testing that reduces risk and strengthens digital resilience.
