CISA Domain 2 Practice Exam 2026 - Free CISA Practice Questions and Study Guide for Domain 2

A lack of adequate security controls defines a vulnerability. Vulnerabilities are weaknesses in a system, application, or organization that can be exploited by threats to gain unauthorized access or cause harm. They arise from inadequate security measures, such as insufficient firewalls, weak authentication mechanisms, or poor data handling practices. When security controls are not implemented effectively, they create openings for potential attacks, allowing threats to exploit these vulnerabilities.

Understanding vulnerabilities is crucial in the field of cybersecurity, as it helps organizations identify areas that need improvement to enhance their overall security posture. By addressing vulnerabilities through targeted security controls, organizations can mitigate risks and protect their assets more effectively.