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Cybersixgill 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
5.7
Cybersixgill enhances efficiency by reducing personnel costs, accelerating patching, and significantly cutting investigation time for organizations.
Sentiment score
3.0
Tenable Nessus boosts security by enhancing threat visibility, reducing vulnerabilities, saving costs, and achieving high user satisfaction.
 

Customer Service

Sentiment score
5.4
Cybersixgill provides exceptional customer service with responsive assistance, proactive updates, and a strong commitment to customer care.
Sentiment score
3.9
Tenable Nessus support is praised for responsiveness and efficiency, with mixed feedback on response times and depth for advanced queries.
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
I can usually fix all of the issues myself.
Co-Founder at RSU Consultancy
 

Scalability Issues

Sentiment score
6.5
Cybersixgill offers excellent scalability and efficiency, but users seek better integration with other security tools and solutions.
Sentiment score
5.2
Tenable Nessus is scalable and flexible for most organizations but may face limitations with very large enterprises.
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
8.2
Cybersixgill is stable and reliable, with minimal downtime, user-friendly management, and consistent performance across varying usage patterns.
Sentiment score
5.8
Tenable Nessus is praised for stability and reliability, with high user satisfaction despite minor setup and update issues.
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, not just the best, but extraordinary.
Founder at Cipheroot
 

Room For Improvement

Cybersixgill users seek UI improvements, better training resources, real-time data, and expanded dark web information sources for enhancement.
Tenable Nessus requires enhanced reporting, better integration, modern UI, faster scans, accurate detection, and comprehensive IT asset coverage.
An AI feature that helps them discover options without requiring them to deep dive into all features or guides them through advisory functions would be beneficial.
Freelancer And CEO at a tech vendor with 1-10 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
Tenable could improve by integrating Gemini or ChatGPT for deeper analysis in risk assessment.
Founder at Cipheroot
 

Setup Cost

Cybersixgill offers competitive pricing, perceived as cost-effective despite currency fluctuations, aligning with market standards and typical industry increases.
Tenable Nessus is valued for affordability and flexibility, though costs vary by organization size, IP count, and region.
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
When we compare it to other solutions, it is more difficult for us to negotiate the price for Tenable Nessus than to negotiate the price with Rapid7.
Freelancer And CEO at a tech vendor 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
 

Valuable Features

Cybersixgill provides in-depth dark web intelligence, advanced threat analysis, and timely alerts for proactive threat management and client protection.
Tenable Nessus excels in vulnerability detection, user-friendliness, scalability, real-time monitoring, integration, compliance reporting, and remediation advice.
The best feature that Cybersixgill offers with respect to dark web intelligence is that they provide very good screenshots of where the particular data has been taken, which allows for better visualization and understanding of the scenario, with the source being indicated through onion links that can be reverse-engineered for further investigation.
Associate at a financial services firm with 10,001+ 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
For me, the key value is the ease of use and integration with SIEMs because it has built-in integrations with IBM QRadar and others.
Freelancer And CEO at a tech vendor with 1-10 employees
 

Categories and Ranking

Cybersixgill
Ranking in Vulnerability Management
52nd
Average Rating
8.6
Reviews Sentiment
5.4
Number of Reviews
5
Ranking in other categories
Threat Intelligence Platforms (TIP) (15th), Digital Risk Protection (8th), Attack Surface Management (ASM) (20th)
Tenable Nessus
Ranking in Vulnerability Management
2nd
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
88
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Vulnerability Management category, the mindshare of Cybersixgill is 0.6%, up from 0.2% compared to the previous year. The mindshare of Tenable Nessus is 4.1%, down from 9.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Tenable Nessus4.1%
Cybersixgill0.6%
Other95.3%
Vulnerability Management
 

Featured Reviews

Aditya Vikram Raj - PeerSpot reviewer
Associate at a financial services firm with 10,001+ employees
Centralized threat insights have enabled comprehensive dark web exposure reporting
The best feature that Cybersixgill offers with respect to dark web intelligence is that they provide very good screenshots of where the particular data has been taken, which allows for better visualization and understanding of the scenario, with the source being indicated through onion links that can be reverse-engineered for further investigation. We were really impressed by some of the features of the platform, and we were planning to integrate it into our day-to-day work, but I'm not certain whether that happened because I was serving a notice period at that time.
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.
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Computer Software Company
9%
Comms Service Provider
8%
Manufacturing Company
7%
Financial Services Firm
10%
Manufacturing Company
10%
Government
9%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise19
Large Enterprise35
 

Questions from the Community

What needs improvement with Cybersixgill Investigative Portal?
I used Cybersixgill for only three months as a proof of concept, so I do not feel I am in a position to provide meaningful suggestions for improvements.
What is your primary use case for Cybersixgill Investigative Portal?
Our main use case for Cybersixgill during our proof of concept was to find a tool as a single pane of glass that would provide us actionable threat intelligence along with adversary reporting. We w...
What advice do you have for others considering Cybersixgill Investigative Portal?
If you are looking for threat intelligence that can cater to various needs from IOC to threat advisories and along with dark web intelligence, then you should try Cybersixgill. I gave this product ...
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 is your experience regarding pricing and costs for Tenable Nessus?
Based on my experience, the pricing for Tenable Nessus is somewhat higher, but customers still want to pay for it, so it remains acceptable. The annual price increase of six to seven percent could ...
 

Overview

 

Sample Customers

Current customers include large enterprises, financial services, manufacturing, GSIs, MSSPs, government and law enforcement entities.
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Find out what your peers are saying about Cybersixgill vs. Tenable Nessus and other solutions. Updated: April 2026.
894,738 professionals have used our research since 2012.