CREST Practitioner Security Analyst (CPSA) 2025 – 400 Free Practice Questions to Pass the Exam

The correct answer is Open Source Security Testing Methodology Manual. This term refers to a comprehensive framework that provides guidelines for conducting security testing in an open-source context. The OSSTMM is widely recognized for its focus on defining a set of standards and best practices for various security testing methodologies, including assessments of physical and personnel security, as well as network security.

The emphasis on "Open Source" signifies that this methodology is available for public use and can be modified or adapted by anyone, which fosters collaboration and ongoing improvement within the security testing community. It lays out structured processes for evaluating the security posture of systems and helps analysts identify vulnerabilities systematically.

Understanding OSSTMM is critical for security professionals as it not only outlines the methodologies but also promotes consistency and accountability in security assessments, enabling effective risk analysis and management.