Introducing G2.ai, the future of software buying.Try now
Compare Intruder and Tenable Nessus 
Featured Products
Sponsored
You’re seeing this ad based on the product’s relevance to this page. Sponsored content does not receive preferential treatment in any of G2’s ratings.
Intruder
Visit Website
At a Glance
Market Segments
Small-Business (60.0% of reviews)
Mid-Market (39.3% of reviews)
Entry-Level Pricing
Starting at $149.00 Per Month
$3,390.00 1 License With One-Time Purchase
Intruder
Star Rating
(200)4.8 out of 5
Market Segments
Small-Business (60.0% of reviews)
Pros & Cons
Entry-Level Pricing
Starting at $149.00 Per Month
Free Trial is available
Browse all 4 pricing plansTenable Nessus
Star Rating
(297)4.5 out of 5
Market Segments
Mid-Market (39.3% of reviews)
Pros & Cons
Entry-Level Pricing
$3,390.00 1 License With One-Time Purchase
Free Trial is available
Browse all 4 pricing plansSummary
AI Generated Summary
AI-generated. Powered by real user reviews.
- Users report that Intruder excels in Ease of Use with a score of 9.5, making it highly accessible for small businesses, while Tenable Nessus, with a score of 8.9, is noted for being more complex, which may require additional training for users.
- Reviewers mention that Intruder's Alerting feature is particularly robust, scoring 9.8, which allows for timely notifications of vulnerabilities, whereas Tenable Nessus, with a score of 8.8, has been described as less responsive in alerting users about critical issues.
- G2 users highlight Intruder's Asset Discovery capabilities, achieving a perfect score of 10.0, which helps organizations identify all assets in their network effectively. In contrast, Tenable Nessus, while still effective, scored lower at 8.5, indicating room for improvement in this area.
- Users on G2 report that Intruder's Quality of Support is exceptional, with a score of 9.7, often citing quick response times and helpful resources. Tenable Nessus, however, received a lower score of 8.4, with some users expressing frustration over slower support responses.
- Reviewers mention that Intruder's Automated Scans are highly efficient, scoring 9.5, which allows for regular vulnerability assessments without manual intervention. Tenable Nessus, while also effective with a score of 9.0, has been noted for requiring more configuration to achieve similar results.
- Users say that Intruder's Vulnerability Assessment feature is particularly strong, scoring 9.7, providing comprehensive insights into security weaknesses. In comparison, Tenable Nessus, with a score of 8.8, is seen as effective but less user-friendly in presenting vulnerability data.
Pricing
Entry-Level Pricing
Intruder
Essential
Starting at $149.00
Per Month
Best for startups looking to stay compliant
- External scanning
- Application scanning
- 18,000+ open-source checks
Tenable Nessus
Pro - 1 Year
$3,390.00
1 License With One-Time Purchase
1-year license of the industry-leading vulnerability assessment solution.
- Automate your vulnerability scanning process
Free Trial
Intruder
Free Trial is available
Tenable Nessus
Free Trial is available
Ratings
Meets Requirements
9.4
154
9.0
245
Ease of Use
9.5
159
8.9
247
Ease of Setup
9.6
138
8.8
169
Ease of Admin
9.6
127
8.9
160
Quality of Support
9.7
149
8.4
227
Has the product been a good partner in doing business?
9.7
120
8.7
148
Product Direction (% positive)
9.8
144
9.0
236
Features by Category
Administration
Feature Not Available
Not enough data
9.2
32
Not enough data
9.7
31
Not enough data
Risk Analysis
Feature Not Available
Not enough data
9.6
31
Not enough data
Feature Not Available
Not enough data
Threat Protection
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Generative AI
6.8
10
Not enough data
Administration
8.6
28
Not enough data
8.5
25
Not enough data
9.1
49
Not enough data
Analysis
9.4
41
Not enough data
9.2
38
Not enough data
9.6
51
Not enough data
Testing
Feature Not Available
Not enough data
8.6
20
Not enough data
8.7
29
Not enough data
9.3
38
Not enough data
Administration
8.9
6
Not enough data
8.6
6
Not enough data
Analysis
9.5
7
Not enough data
9.6
8
Not enough data
Feature Not Available
Not enough data
9.8
8
Not enough data
Feature Not Available
Not enough data
Testing
7.9
7
Not enough data
8.8
7
Not enough data
7.8
6
Not enough data
9.0
7
Not enough data
9.5
7
Not enough data
7.9
7
Not enough data
Performance
9.1
79
|
Verified
Feature Not Available
9.3
89
|
Verified
8.9
139
|
Verified
7.8
87
|
Verified
6.7
137
|
Verified
9.5
96
|
Verified
9.1
134
|
Verified
Network
9.0
39
8.8
135
|
Verified
8.9
80
|
Verified
8.8
128
|
Verified
Feature Not Available
8.4
112
|
Verified
Application
8.1
52
|
Verified
Feature Not Available
Feature Not Available
7.3
85
8.4
50
|
Verified
7.8
104
Agentic AI - Vulnerability Scanner
8.1
8
8.0
10
8.1
8
8.0
10
API Management
8.8
8
Not enough data
Feature Not Available
Not enough data
9.2
10
Not enough data
Feature Not Available
Not enough data
Security Testing
Feature Not Available
Not enough data
Feature Not Available
Not enough data
8.7
10
Not enough data
Security Management
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Cloud Security Posture Management (CSPM)Hide 11 FeaturesShow 11 Features
Not enough data
Not enough data
Configuration
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Visibility
Not enough data
Not enough data
Not enough data
Not enough data
Vulnerability Management
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Asset Management
9.3
19
6.9
6
8.1
18
7.5
6
Feature Not Available
4.7
6
Monitoring
Feature Not Available
8.3
6
9.5
21
10.0
6
9.3
21
8.6
6
9.6
21
9.2
6
Risk Management
9.2
22
9.2
6
8.9
22
9.2
6
Feature Not Available
8.6
6
9.3
19
9.4
6
Generative AI
6.3
13
Not enough data
Generative AI - Exposure Management Platforms
Not enough data
Not enough data
Not enough data
Not enough data
Risk Identification and Assessment - Exposure Management Platforms
Not enough data
Not enough data
Not enough data
Not enough data
Monitoring and Integration - Exposure Management Platforms
Not enough data
Not enough data
Not enough data
Not enough data
Cloud Visibility
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Security
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Identity
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Categories
Categories
Shared Categories
Intruder and Tenable Nessus are categorized as Attack Surface Management, API Security, Dynamic Application Security Testing (DAST), and Vulnerability Scanner
Unique Categories
Intruder is categorized as Exposure Management Platforms, Penetration Testing, Website Security, and Cloud Security Posture Management (CSPM)
Tenable Nessus has no unique categories
Reviews
Reviewers' Company Size
Intruder
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Tenable Nessus
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Small-Business
(50 or fewer emp.)
Mid-Market
(51-1000 emp.)
Enterprise
(> 1000 emp.)
Reviewers' Industry
Computer Software
21.0%
Information Technology and Services
14.9%
Financial Services
7.7%
Computer & Network Security
6.2%
Insurance
2.6%
Other
47.7%
Information Technology and Services
26.0%
Computer & Network Security
16.7%
Financial Services
7.8%
Computer Software
6.4%
Banking
4.6%
Other
38.4%
Alternatives
Discussions
What does Intruder actually test for you?
2 Comments
Official Response from Intruder
Intruder currently performs ~10,000 checks varying from configuration weaknesses, security patches, and application bugs. An up-to-date list can always be...Read more
Will Intruder's scans damage my systems?
2 Comments
Official Response from Intruder
It's very unlikely that Intruder's scans will damage your systems. If this is a concern of yours, users have the ability to throttle scans.Read more
What are Intruder's key principals?
1 Comment
Official Response from Intruder
We pride ourselves on being a simple, intuitive product that still packs a punch. Vulnerability management can be a complicated task, but it doesn't have to...Read more
I'm a consultant; can I use Nessus Professional to conduct my client's vulnerability scanning?
2 Comments
AS
Yes, you can.Read more
Is Nessus professional the right product for me?
2 Comments
Official Response from Tenable Nessus
Nessus Professional has always been designed for the security professional. The typical Nessus user is a consultant or contractor who is very experienced...Read more
Can I use Nessus professional data in other applications?
2 Comments
Official Response from Tenable Nessus
Yes. Many third party applications can incorporate a Nessus file. This allows consultants to share the data with their clients’ other applications for the...Read more
Hunting for software insights?
With over 3 million reviews, we can provide the specific details that help you make an informed software buying decision for your business. Finding the right product is important, let us help.
