Tenable Nessus vs. Intruder

Built for security practitioners, by security professionals, Nessus products by Tenable are the de-facto industry standard for vulnerability assessment. Nessus performs point-in-time assessments to help security professionals quickly and easily identify and fix vulnerabilities, including software flaws, missing patches, malware, and misconfigurations - across a variety of operating systems, devices, and applications.

Intruder's continuous exposure management platform helps security, IT, and engineering teams stop breaches before they start. By unifying AI penetration testing, attack surface monitoring, cloud security, and vulnerability management in one intuitive platform, Intruder gives stretched teams an always-on security source of truth. Our approach focuses on continuous automated scanning using expertise and agentic solutions to ensure that the findings we deliver are accurate, prioritized by real-world risk, and ready to act on.