Nessus is a comprehensive vulnerability assessment tool that is widely used for conducting vulnerability assessments. It is known for its ability to generate detailed and easy-to-read reports, which makes it a preferred choice for security consultants who need to document their findings clearly. Nessus scans for a wide range of vulnerabilities across different systems and applications. It provides a detailed report that includes the vulnerabilities found, their severity levels, and recommendations for remediation. This feature makes it ideal for security consultants who need to perform vulnerability assessments and present their findings to stakeholders in an understandable format. References: * Nessus product page: Tenable Nessus * Use of Nessus in penetration testing reports: The reports generated by Nessus have been referenced in various HTB writeups such as those for Luke and Horizontall.