The Nessus Family
Nessus is trusted by more than 30,000 organizations worldwide as one of the most widely deployed security technologies on the planet - and the gold standard for vulnerability assessment.
- High speed, in-depth assessments
- Free training and guidance
- Support via Tenable Community
Ideal for: Educators, students and individuals starting their careers in Cyber Security. Learn more about using Essentials in the classroom with the Tenable for Education program.
- Unlimited assessments
- Use anywhere, annual subscription
- Configuration assessment
- Live Results
- Configurable Reports
- Community Support
- Advanced Support available with subscription
Ideal for: Consultants, Pen Testers and Security Practitioners
With Advanced Support for Nessus Professional, your teams will have access to phone, Community, and chat support 24 hours a day, 365 days a year. This advanced level of technical support helps to ensure faster response times and resolution to your questions and issues.
Advanced Support Plan Features
Phone Support
Phone support 24 hours a day, 365 days a year, available for up to ten (10) named support contacts.
Chat Support
Chat support available to names support contacts, accessible via the Tenable Community is available 24 hours a day, 365 days a year.
Tenable Community Support Portal
All named support contacts can open support cases within the Tenable Community. Users can also access the Knowledge Base, documentation, license information, technical support numbers, etc.; utilize live chat, ask questions to the Community, and learn about tips and tricks from other Community members.
SLAs
P1-Critical: < 2 hr
P2-High: < 4 hr
P3-Medium: < 12 hr
P4-Informational: < 24 hr
Support Contacts
Support contacts must be reasonably proficient in the use of information technology, the software they have purchased from Tenable, and familiar with the customer resources that are monitored by means of the software. Support contacts must speak English and conduct support requests in English. Support contacts must provide information reasonably requested by Tenable for the purpose of reproducing any Error or otherwise resolving a support request.
- Unlimited Nessus Scanners
- Managed in the Cloud
- Includes Predictive Prioritization
- Advanced Dashboards and Reports
- Role-Based Access Control
- Advanced Support
- Enterprise Scalability
- Priced per asset, annual subscription
Ideal for: Vulnerability Management for small, medium and enterprise organizations

Our Customers Have Spoken
Gartner Peer Insights
Tenable highest rated of all 2020 "Customers' Choice" vendors in Product Capabilities, with a 4.7 out of 5 rating as of 2/29/20, based on 156 reviews, in this ‘Voice of the Customer’ report (April 2020).
Nessus is #1 For Vulnerability Assessment
From the beginning, we've worked hand-in-hand with the security community. We continuously optimize Nessus based on community feedback to make it the most accurate and comprehensive vulnerability assessment solution in the market. 20 years later and we're still laser focused on community collaboration and product innovation to provide the most accurate and complete vulnerability data - so you don't miss critical issues which could put your organization at risk.
Today, Nessus is trusted by more than 30,000 organizations worldwide as one of the most widely deployed security technologies on the planet - and the gold standard for vulnerability assessment. See for yourself - explore the product here.
Nessus has the industry's lowest false positive rate with six-sigma accuracy.
Nessus has the deepest and broadest vulnerability coverage in the industry.
released weekly
Nessus is trusted by more than 30,000 organizations, with 2 million downloads worldwide.
Nessus is the #1 deployed solution for application vulnerability assessment*
Don't just take our word for it. See for yourself why security practitioners around the world put their trust in Nessus.
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One of the Most Critical Products/Services in the Last 30 Years
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It allows us to find and remediate vulnerability.
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It finds vulnerabilities.
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Makes life easier, every day.
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It makes my job easy!
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It just works every time.
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It makes scanning for vulnerabilities extremely easy!
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It will save us a ton of time and money!
Take the Guesswork out of Vulnerability Assessment
Get the Power of Tenable Research Behind You
Our research team works closely with the security community to discover new vulnerabilities and provide insights into published vulnerabilities to help organizations quickly detect them in their environment. Our research team builds these insights into Nessus to help you become a vulnerability assessment expert (without actually having to be one).


Plugins are automatically updated in Nessus in real-time, providing you with timely information on the latest vulnerabilities and malware, a simple set of remediation actions, and a fast and easy way to see if your systems are vulnerable. This means more comprehensive assessments and less time required to research, validate and prioritize issues.
Built For Practitioners, By Practitioners
Nessus was built from the ground-up with a deep understanding of how security practitioners work. Every feature in Nessus is designed to make vulnerability assessment simple, easy and intuitive. The result: less time and effort to assess, prioritize, and remediate issues. Learn more about the features here.
More than 30,000 organizations trust Nessus.
“It just works.” -Nessus User
Get Started with Nessus Professional
Get the world’s most widely deployed vulnerability assessment solution.
Renew an existing license | Find a reseller
With Advanced Support for Nessus Professional, your teams will have access to phone, Community, and chat support 24 hours a day, 365 days a year. This advanced level of technical support helps to ensure faster response times and resolution to your questions and issues.
Advanced Support Plan Features
Phone Support
Phone support 24 hours a day, 365 days a year, available for up to ten (10) named support contacts.
Chat Support
Chat support available to names support contacts, accessible via the Tenable Community is available 24 hours a day, 365 days a year.
Tenable Community Support Portal
All named support contacts can open support cases within the Tenable Community. Users can also access the Knowledge Base, documentation, license information, technical support numbers, etc.; utilize live chat, ask questions to the Community, and learn about tips and tricks from other Community members.
SLAs
P1-Critical: < 2 hr
P2-High: < 4 hr
P3-Medium: < 12 hr
P4-Informational: < 24 hr
Support Contacts
Support contacts must be reasonably proficient in the use of information technology, the software they have purchased from Tenable, and familiar with the customer resources that are monitored by means of the software. Support contacts must speak English and conduct support requests in English. Support contacts must provide information reasonably requested by Tenable for the purpose of reproducing any Error or otherwise resolving a support request.