Try our new research platform with insights from 80,000+ expert users

Orca Security vs Tenable Nessus comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
4.0
Orca Security boosts efficiency and cuts costs by 50%, simplifying processes and enhancing cloud security visibility for users.
Sentiment score
2.5
Tenable Nessus excels in vulnerability management, boosting security, offering cost-efficiency, and enhancing threat detection and patch deployment.
Orca Security significantly improved our visibility from 30% to 100%, enabling better security posture improvements rather than just general cost savings.
Cloud Security Automation Engineer at a financial services firm with 10,001+ employees
I see the benefits of Orca Security immediately because you can see the issues right after deployment, and you can correct the critical issues, so the proof of value is immediate.
Cybersecurity Architect Lead at a consultancy with 11-50 employees
Orca Security roughly reduced the operating expenses by around 20-50%.
Assistant Manager at a manufacturing company with 10,001+ employees
 

Customer Service

Sentiment score
6.3
Orca Security receives high praise for responsive support, real-time communication, and prioritizing customer success with knowledgeable and engaged service.
Sentiment score
3.8
Tenable Nessus support is knowledgeable and efficient but sometimes delayed, with high overall satisfaction despite occasional response speed issues.
I would rate the quality of support as nine stars out of ten due to their quick and helpful responses.
Senior Information Security Engineer at a computer software company with 10,001+ employees
The expertise levels could be improved.
Cloud Security Automation Engineer at a financial services firm with 10,001+ employees
The support team assists with issues and provides information on new updates.
Vulnerability Assessment Analyst at a computer software company with 501-1,000 employees
We received support within one to three hours.
CIO at a insurance company with 201-500 employees
Whenever any issue arises, we contact the support, and they are always there for us.
Information security engineer at Cyberisk
The technical support is good yet could improve in terms of response time.
SOC Engineer at a outsourcing company with 10,001+ employees
 

Scalability Issues

Sentiment score
8.3
Orca Security offers scalable, efficient cloud security across AWS, Azure, and Google Cloud, earning high user satisfaction ratings.
Sentiment score
5.6
Tenable Nessus is scalable, adaptable, and well-regarded, though larger environments may face server and cloud storage challenges.
When you onboard an organization, Orca will find new projects, folders, and resources without any additional effort required.
Senior Information Security Engineer at a computer software company with 10,001+ employees
The seamless integration allows us to automatically reflect any connected project from our cloud into the console.
Vulnerability Assessment Analyst at a computer software company with 501-1,000 employees
I believe Orca Security is scalable and can handle small and medium-enterprise businesses effectively.
CTO /Director at OPLIUM
Whether managing 50 servers today or 500 tomorrow, performance or capacity are not hindered.
SOC Engineer at a outsourcing company with 10,001+ employees
Tenable Nessus is definitely scalable, especially for license formats designed for scalability.
Security Center Coordinator at a comms service provider with 1-10 employees
 

Stability Issues

Sentiment score
8.3
Orca Security is highly rated for reliability, excellent stability, minimal downtime, and effective resolution of initial interface issues.
Sentiment score
5.7
Tenable Nessus is stable with reliable performance, minor update issues, occasional false positives, and rare network interference.
I personally have not encountered any bugs or issues with the console.
Vulnerability Assessment Analyst at a computer software company with 501-1,000 employees
I have experienced very little downtime.
Works at Ultraviolet Cyber
I do not experience downtime, bugs, or glitches.
CTO /Director at OPLIUM
We have not encountered any issues with missing network items or errors in API and webhook interactions.
SOC Engineer at a outsourcing company with 10,001+ employees
The stability of Tenable Nessus is extraordinary.
Founder at Cipheroot
 

Room For Improvement

Orca Security should enhance interface simplicity, real-time data, automation, integration, customization, and user education for better security.
Tenable Nessus needs improved reporting, integration, and user interface, along with expanded capabilities, flexible pricing, and better documentation.
Another improvement is in handling alerts for multiple files with the same CVE; it should provide an option to manage each file separately without affecting others.
Senior Information Security Engineer at a computer software company with 10,001+ employees
Orca Security could improve in reporting OS package vulnerabilities, such as missing MS patches or Linux patches.
Vulnerability Assessment Analyst at a computer software company with 501-1,000 employees
Security in today's age is important, and if a company can afford it, they should get it as it's the most valuable protection against threats.
Software Developer at a tech vendor with 1,001-5,000 employees
This is Tenable's property. They want to sell Tenable Security Center, and they closed all the API capability for Tenable Nessus Professional.
Co-Founder at RSU Consultancy
The documentation is not well-organized, which can be confusing when searching for solutions or specific information related to Tenable Nessus Professional.
SOC Engineer at a outsourcing company with 10,001+ employees
The product's pricing has roughly tripled within the last couple of years, making us reconsider renewing the license for the scanner.
Security Center Coordinator at a comms service provider with 1-10 employees
 

Setup Cost

Orca Security offers comprehensive features with high but competitive pricing, flexible models, and no additional costs for extensions.
Enterprise evaluations praise Tenable Nessus for competitive pricing, though licensing flexibility issues may increase costs for larger networks.
The initial price seemed high, however, after negotiation, the final price was ideal.
Senior Information Security Engineer at a computer software company with 10,001+ employees
Orca Security's pricing is known to be a bit high.
Works at Ultraviolet Cyber
Its license is a bit expensive.
enterprise architect at a tech services company with 1-10 employees
The pricing for Tenable Nessus has increased significantly, tripling over the last few years.
Security Center Coordinator at a comms service provider with 1-10 employees
Tenable Nessus's pricing is adequate if it is fully utilized.
SOC Engineer at a outsourcing company with 10,001+ employees
My experience with the pricing, setup cost, and licensing of Tenable Nessus is that the installation is somewhat easier, but preparing the product, such as the SKU and license options, is quite tricky.
Senior Security Consultant at ITSEC Asia
 

Valuable Features

Orca Security provides agentless cloud visibility, prioritizes vulnerabilities, and enhances security with integration and automation across multi-cloud environments.
Tenable Nessus offers comprehensive vulnerability coverage, flexible scanning, ease of use, affordable pricing, and effective integration, enhancing security management.
Additionally, it covers a large scope of vulnerabilities, CVEs, malware, and misconfiguration.
Senior Information Security Engineer at a computer software company with 10,001+ employees
It provided us with visibility from a central point, increasing our view from the previous thirty percent to a full one hundred percent of our cloud environment.
Cloud Security Automation Engineer at a financial services firm with 10,001+ employees
This technology allows for coverage of almost all cloud assets without interrupting their operations.
Vulnerability Assessment Analyst at a computer software company with 501-1,000 employees
I mostly use the configuration audit feature for the audit configuration as a scan policy, and I will use it for credential audit, which helps me scan credentials access such as local administrator or root access, performing a deeper and more accurate check of local configuration settings and file systems, making it a highly recommended feature.
Founder at Cipheroot
The scanning and reporting features are the most valuable aspects of Tenable Nessus.
SOC Engineer at a outsourcing company with 10,001+ employees
The most valuable features of Tenable Nessus include its ease of access and quick usability.
Security Center Coordinator at a comms service provider with 1-10 employees
 

Categories and Ranking

Orca Security
Ranking in Vulnerability Management
10th
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
27
Ranking in other categories
Container Security (10th), Cloud Workload Protection Platforms (CWPP) (5th), API Security (4th), Cloud Security Posture Management (CSPM) (7th), Cloud-Native Application Protection Platforms (CNAPP) (5th), Data Security Posture Management (DSPM) (8th), Cloud Detection and Response (CDR) (3rd), AI Security (7th)
Tenable Nessus
Ranking in Vulnerability Management
2nd
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
87
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Vulnerability Management category, the mindshare of Orca Security is 2.6%, down from 4.0% compared to the previous year. The mindshare of Tenable Nessus is 5.1%, down from 10.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus5.1%
Orca Security2.6%
Other92.3%
Vulnerability Management
 

Featured Reviews

reviewer2800203 - PeerSpot reviewer
Assistant Manager at a manufacturing company with 10,001+ employees
Cloud posture management has improved remediation and optimizes costs with contextual risk insights
Since I have not used Orca Security for 10 months, I am uncertain what areas still need improvement, as they may have rolled out features that addressed issues I faced in the past. However, I can say the tool is good. A few things could potentially be improved, particularly regarding false positives and the UI. What I observed is that they release updates to the platform without notifying the customer. Every time the UI is upgraded, they release something without notification. This could be a slight improvement. If they released some kind of notification to just inform the customer about UI changes, the customer would be aware of the changes that Orca Security is making in the backend.
MohammedJaffir - PeerSpot reviewer
Founder at Cipheroot
Has enabled me to reduce false positives and perform deep credential auditing with seamless integrations
I mostly use the configuration audit feature for the audit configuration as a scan policy, and I will use it for credential audit, which helps me scan credentials access such as local administrator or root access, performing a deeper and more accurate check of local configuration settings and file systems, making it a highly recommended feature. Regarding integration capabilities, we can integrate Tenable Nessus with SIM tools such as Splunk, IBM QRadar, and Azure Sentinel, as well as with ticketing systems such as ServiceNow, Jira, and Slack. There is no complexity as it is very easy to integrate everything. In terms of the reporting feature, while vulnerability scanning can throw some false positives, Tenable Nessus has very few, achieving a reduction of 75% to 80% false positives with manual analysis needed. We can generate standard Nessus reports that typically include host summaries and vulnerabilities by host and plugin, alongside solutions and remediation recommendations. The main benefits I get from Tenable Nessus are complete asset inventory and comprehensive attack surface management, allowing us to prioritize vulnerabilities based on risk, focusing on true risk and threat path analysis.
report
Use our free recommendation engine to learn which Vulnerability Management solutions are best for your needs.
881,665 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
14%
Computer Software Company
13%
Manufacturing Company
10%
Healthcare Company
5%
Financial Services Firm
10%
Government
10%
Manufacturing Company
10%
Computer Software Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise7
Large Enterprise8
By reviewers
Company SizeCount
Small Business39
Midsize Enterprise19
Large Enterprise35
 

Questions from the Community

What do you like most about Orca Security?
It's for protection. It's an agentless tool. We don't need to install anything at a customer's premises. We can just scan the entire assets in the cloud.
What needs improvement with Orca Security?
Identifying areas in Orca Security that have room for improvement is challenging, as there are multiple considerations including price, customization, AI, UI, and factors that could make it better ...
What is your primary use case for Orca Security?
My use case involves being in charge of the integration of this technology for over 100 clients in different environments.
How would you choose between Rapid7 InsightVM and Tenable Nessus?
You have full visibility across cloud, network, virtual, and containerized infrastructures with Rapid7 Insight VM. You can easily prioritize vulnerabilities using attacker analytics. Overall, Rapid...
What's the difference between Tenable Nessus and Tenable.io Vulnerability Management?
Tenable Nessus is a vulnerability assessment solution that is both easy to deploy and easy to manage. The design of the program is such that if a company should desire to handle the installation t...
What do you like most about Tenable Nessus?
We have around 500 virtual machines. Therefore, we conduct monthly scans and open tickets for our developers to address identified vulnerabilities. These scans cover the servers, other network equi...
 

Overview

 

Sample Customers

BeyondTrust, Postman, Digital Turbine, Solarisbank, Lemonade, C6 Bank, Docebo, Vercel, and Vivino
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Find out what your peers are saying about Orca Security vs. Tenable Nessus and other solutions. Updated: December 2025.
881,665 professionals have used our research since 2012.