85k+ VULNERABILITIES ASSESSED WITH 210,000+ PLUGINS - NO. 1 IN CVE COVERAGE

Identify, prioritize and remediate 85k+ vulnerabilities across your entire attack surface. Cloud infrastructure. IT assets. More.

Nessus Professional

#1 in Vulnerability Assessment

Scan your IT assets, identify your vulnerabilities and prioritize your remediation efforts.
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Nessus Expert

Built for the Modern Attack Surface

Scan your IT devices, discover your internet‑facing assets and secure your cloud infrastructure.
Buy Now Try Nessus Expert Now

Built for the Modern Attack Surface

Scan your IT devices, discover your internet-facing assets and secure your cloud infrastructure.
Buy Now Try Nessus Expert Now

#1 in Vulnerability Assessment

Scan your IT assets, identify your vulnerabilities and prioritize your remediation efforts.
Buy Now Try Nessus Professional Now

Stay a step ahead of attackers with the #1 vulnerability assessment solution.

Stay a step ahead of attackers with the #1 vulnerability assessment solution.

Discover and Assess Your IT Assets

Discover and assess
your IT assets

Fortify Your Web Applications

Fortify your
web applications

Secure Cloud Infrastructure Before Deployment

Secure cloud infrastructure
before deployment

Gain Visibility into your Internet Facing Attack Surface

Gain visibility into your
internet‑facing attack surface

Over 44,000 Clients and 65% of the Fortune 500

Tenable Protects over 44,000 Clients and 65% of the Fortune 500

The Industry Standard

Tenable Nessus® Professional is an efficient and easy to use tool that provides fast, comprehensive and accurate point‑in‑time vulnerability scans for traditional IT assets.

Tenable Nessus® Expert enables you to see more in order to protect your organization, secure your cloud environments and gain visibility into your Internet‑facing assets.

Close Your Cyber Exposure Gap with Tenable Nessus

Scan your entire network with one tool to identify and prioritize vulnerabilities across cloud environments and IT assets.

Scan infrastructure

Real-time vulnerability updates

Robust vulnerability scanning

Prioritized reports

API access

Ability to add domains

External attack surface scanning

Compliance audits of cloud infrastructure

Technical support

Nessus Professional

Robust for smaller environments comparing to Nessus Expert.

Pentesters, consultants, and SMB’s

Traditional
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Standard
Nessus Expert

Designed for larger organizations with more complex networks.

Pentesters, consultants, developers, and SMB’s.

Traditional + cloud
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5 domains per quarter
500 prebuilt policies
Priority

Close Your Cyber Exposure Gap with Tenable Nessus

Scan your entire network with one tool to identify and prioritize vulnerabilities across cloud environments and IT assets.
Nessus Professional

Robust for smaller environments comparing to Nessus Expert.

Pentesters, consultants, developers, and SMB's.

Nessus Expert

Designed for larger organizations with more complex networks.

Pentesters, consultants, and SMB's

Scan infrastructure

Traditional
Traditional + cloud

Real-time vulnerability updates

Checkmark Checked
Checkmark Checked

Robust vulnerability scanning

Checkmark Checked
Checkmark Checked

Prioritized reports

Checkmark Checked
Checkmark Checked

API access

Checkmark Checked
Checkmark Checked

Ability to add domains

Checkmark Checked
Checkmark Checked

External attack surface scanning

Checkmark Checked
5 domains per quarter

Compliance audits of cloud infrastructure

Checkmark Checked
500 prebuilt policies

Technical support

Standard
Priority
Buy Now Try Nessus Professional Now
Buy Now Try Nessus Expert Now

Discover, assess, and audit IT and cloud environments.

Tenable Nessus® Expert is the industry's first vulnerability assessment solution that assesses both traditional IT assets and the dynamic modern attack surface including cloud resources, mobile devices and the unknown external attack surface.

Buy Now
Discover, assess, and audit IT and cloud environments.

Tenable Nessus® Expert allows you to see more and protect your organization.

Tenable Nessus® Expert allows you to take a broader approach in assessing your attack surface that goes beyond traditional IT infrastructure with Infrastructure as Code (IaC) deployments and internet facing assets.

Buy Now
Tenable Nessus® Expert allows you to see more and protect your organization.

ASSESS AND AUDIT IT NETWORKS AND CLOUD ENVIRONMENTS.

Tenable Nessus® Professional is the industry gold standard - #1 in coverage, accuracy and adoption. The fast, easy way to find vulnerabilities before your attackers.

Buy Now
ASSESS AND AUDIT IT NETWORKS AND CLOUD ENVIRONMENTS.

ACCURATE VISIBILITY INTO YOUR NETWORKS.

Fast, comprehensive and accurate point‑in‑time vulnerability scans for traditional IT assets.

Buy Now
ACCURATE VISIBILITY INTO YOUR NETWORKS.

Hear From Our Customers

Matthew S
Evan L
Dustin L
Matthew S
Dustin L
Evan L
Predict What Matters

Industry's most comprehensive vulnerability coverage with real‑time continuous network assessment.

Buy Now Try Nessus Expert Now
Predict What Matters

Industry's most comprehensive vulnerability coverage with real‑time continuous network assessment.

Buy Now Try Nessus Professional Now
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FREE FOR 7 DAYS

Built for the modern attack surface, Nessus Expert enables you to see more and protect your organization from vulnerabilities from IT to the cloud.

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Upgrade to Nessus Expert free for 7 days.

Buy Tenable Nessus Expert

Built for the modern attack surface, Nessus Expert enables you to see more and protect your organization from vulnerabilities from IT to the cloud.

Select Your License

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Buy a multi-year license and save more.

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Try Tenable Nessus Professional Free

FREE FOR 7 DAYS

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy Tenable Nessus Professional

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy a multi-year license and save. Add Advanced Support for access to phone, community and chat support 24 hours a day, 365 days a year.

Select Your License

Buy a multi-year license and save.

Add Support and Training

Buy Now
Renew an existing license | Find a reseller