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#1 Vulnerability Scanner

Make Your Vulnerabilities Visible

  • Covers an industry-leading 47,000+ vulnerabilities
  • Unlimited scans at no extra cost
  • Compliant with PCI, HIPPA, GLBA, CIS, NIST, and more
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The Industry Standard

Over 27,000 Clients. 50% of the Fortune 500.


With Nessus Pro, you'll always know.


Policy creation is simple and only requires a few clicks to scan an entire corporate network.

Advanced detection
means more protection

47,000+ CVEs – the most in the industry. Nessus scans more technologies and uncovers more vulnerabilities than competing solutions.

Cost effective for companies of all sizes

Cost effective for any consultant or team, Nessus provides complete vulnerability scanning with unlimited assessments for one low price.

Accurate visibility into your networks

Nessus identifies the vulnerabilities that need attention with high-speed, accurate scanning and minimal false-positives.

Plugins provide timely protection

Tenable researchers leverage extensive intel sources, providing plugins that deliver timely protection from the latest threats.

Accommodate growth
and scale safely

Easily migrate to or other Tenable solutions as your vulnerability management needs increase.

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  • Stay Compliant

    Nessus is the industry gold standard. Meet all your compliance requirements with our pre-built compliance templates.

  • Unlimited Scans

    Simple fixed fee pricing.  No charges for additional scans.  Unlimited IPs.

  • Multiple Platforms

    Supported on a variety of operating systems: Linux, Mac OS X, Windows.

Protect your company networks with the industry's most widely deployed solution.

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American Eagle Outfitters
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Nessus has been a core component of information security. We evaluated a lot of different tools before and we always knew that the threat intelligence level behind Nessus was really good. I’ve had a lot of success with it.

Matthew S, Security Professional

American Eagle Outfitters
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Nessus is essential to our security. We’ve had a situation where we realized that one of our devices was unsecured and Nessus successfully identified the threat. Nessus also helped us identify other unsecured devices in our network which dramatically improved our security.

Evan L, Sr. Consultant - IT Security

World Wide Technology
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Each day things are becoming more and more digital. This means that we have to actively think about data integrity and confidentiality. Tenable limits the cyber exposure which makes it less likely to have security incidents and data integrity issues.

Dustin L, Information Technology Product Owner

World Wide Technology