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Compare Ossec and Tenable Nessus 
At a Glance
Market Segments
Small-Business (50.0% of reviews)
Mid-Market (39.5% of reviews)
Entry-Level Pricing
No pricing available
$3,390.00 1 License With One-Time Purchase
Ossec
Star Rating
(10)4.6 out of 5
Market Segments
Small-Business (50.0% of reviews)
Pros & Cons
Not enough data
Entry-Level Pricing
No pricing available
Learn more about OssecTenable Nessus
Star Rating
(298)4.5 out of 5
Market Segments
Mid-Market (39.5% of reviews)
Pros & Cons
Entry-Level Pricing
$3,390.00 1 License With One-Time Purchase
Free Trial is available
Browse all 4 pricing plansOssec vs Tenable Nessus
When assessing the two solutions, reviewers found Tenable Nessus easier to use, set up, and administer. However, reviewers preferred doing business with Ossec overall.
- Reviewers felt that Ossec meets the needs of their business better than Tenable Nessus.
- When comparing quality of ongoing product support, reviewers felt that Tenable Nessus is the preferred option.
- For feature updates and roadmaps, our reviewers preferred the direction of Tenable Nessus over Ossec.
Pricing
Entry-Level Pricing
Ossec
No pricing availableTenable 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
Ossec
No trial information availableTenable Nessus
Free Trial is available
Ratings
Meets Requirements
9.1
9
9.0
246
Ease of Use
8.3
9
8.9
248
Ease of Setup
8.1
7
8.8
170
Ease of Admin
8.8
7
8.9
161
Quality of Support
8.3
8
8.4
228
Has the product been a good partner in doing business?
9.2
6
8.7
149
Product Direction (% positive)
8.7
9
8.9
237
Features by Category
Dynamic Application Security Testing (DAST)Hide 13 FeaturesShow 13 Features
Not enough data
Not enough data
Administration
Not enough data
Not enough data
Not enough data
Not enough data
Analysis
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
Testing
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
Not enough data
Not enough data
Intrusion Detection and Prevention Systems (IDPS)Hide 14 FeaturesShow 14 Features
9.0
5
Not enough data
Prevention
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
Detection
9.7
5
Not enough data
10.0
5
Not enough data
Not enough data
Not enough data
Administration
9.0
5
Not enough data
7.3
5
Not enough data
Not enough data
Not enough data
Generative AI
Not enough data
Not enough data
Agentic AI - Intrusion Detection and Prevention Systems (IDPS)
Not enough data
Not enough data
Not enough data
Not enough data
Performance
Not enough data
Feature Not Available
Not enough data
8.9
140
|
Verified
Not enough data
6.7
136
|
Verified
Not enough data
9.1
134
|
Verified
Network
Not enough data
8.8
135
|
Verified
Not enough data
8.8
127
|
Verified
Not enough data
8.4
111
|
Verified
Application
Not enough data
Feature Not Available
Not enough data
7.3
84
Not enough data
7.8
103
Agentic AI - Vulnerability Scanner
Not enough data
8.0
10
Not enough data
7.8
9
API 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
Security Testing
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Security Management
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Asset Management
Not enough data
6.9
6
Not enough data
7.5
6
Not enough data
4.7
6
Monitoring
Not enough data
8.3
6
Not enough data
10.0
6
Not enough data
8.6
6
Not enough data
9.2
6
Risk Management
Not enough data
9.2
6
Not enough data
9.2
6
Not enough data
8.6
6
Not enough data
9.4
6
Generative AI
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
Ossec and Tenable Nessus share no categories
Unique Categories
Ossec is categorized as Intrusion Detection and Prevention Systems (IDPS)
Tenable Nessus is categorized as Attack Surface Management, Vulnerability Scanner, Dynamic Application Security Testing (DAST), and API Security
Reviews
Reviewers' Company Size
Ossec
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
Financial Services
20.0%
Retail
10.0%
Religious Institutions
10.0%
Marketing and Advertising
10.0%
Information Technology and Services
10.0%
Other
40.0%
Information Technology and Services
25.9%
Computer & Network Security
17.0%
Financial Services
7.8%
Computer Software
6.0%
Banking
4.6%
Other
38.7%
Alternatives
Discussions
Ossec has no discussions with answers
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
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