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Tenable Nessus vs XM Cyber comparison

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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:
 

Categories and Ranking

Zafran Security
Sponsored
Ranking in Vulnerability Management
17th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (1st)
Tenable Nessus
Ranking in Vulnerability Management
1st
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
86
Ranking in other categories
No ranking in other categories
XM Cyber
Ranking in Vulnerability Management
31st
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
5
Ranking in other categories
Continuous Controls Monitoring (3rd), Cloud Security Posture Management (CSPM) (20th), Continuous Threat Exposure Management (CTEM) (3rd)
 

Mindshare comparison

As of October 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 1.0%, up from 0.1% compared to the previous year. The mindshare of Tenable Nessus is 7.3%, down from 11.3% compared to the previous year. The mindshare of XM Cyber is 1.1%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus7.3%
Zafran Security1.0%
XM Cyber1.1%
Other90.6%
Vulnerability Management
 

Featured Reviews

Israel Cavazos Landini - PeerSpot reviewer
Weekly insights and risk analysis facilitate informed security decisions
I appreciate the weekly insights Zafran provides, which include critical topics for networks and IT security, allowing us to evaluate which insights apply to our environment. The organization score feature is valuable to keep the leadership team updated on how our infrastructure fares security-wise. The applicable risk level versus base risk level feature is beneficial because prior to Zafran, we only used the base risk level, but now understand that risk depends on the asset itself. Zafran is an excellent tool.
HarshBhardiya - PeerSpot reviewer
Provided increased visibility across the organization's servers
The user interface of Tenable Nessus feels outdated and could be more user-friendly. Additionally, the documentation is not well-organized, which can be confusing when searching for solutions or specific information related to Tenable Nessus Professional. The reporting feature could be improved by allowing users to create their own templates instead of relying on predefined ones.
Stephen Owen - PeerSpot reviewer
Has significantly improved risk visibility and optimized remediation efforts across dynamic environments
We tightly integrate with APIs, consuming feeds and open source data. We have integrated with XM Cyber, and we are elevating ourselves with AI and MCP tools as we view this as a forerunner to reducing the workload for our agents and IT staff. We're pushing all our security partners to provide AI and MCP tools. Our vision is for them to offer a chat interface where a junior IT or an experienced infrastructure engineer can ask for what needs to be patched next without using an interface. Their current interface is very usable and professional, ranking in the top tier of applications. Their reporting is good, offering custom reports, and their API integration is a new capability that serves us well. We have high expectations for the next generation, such as a chat interface to ask questions. However, everything has been very good. We push the boundaries with digital twins; I understand XM Cyber uses a similar concept of graph databases to map environments. I would like access to that and querying languages, enabling more informed business decisions. XM Cyber sees much of our estate, which is beneficial for making informed decisions, and we can harness those insights and data for business analytics. For instance, it could help us gain insights into change management—if a particular server impacts another and that server is supported by yet another server, we could glean significant insights for change management meetings.

Quotes from Members

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

Pros

"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"Zafran is an excellent tool."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
"We saw benefits from Zafran Security almost immediately after deploying it."
"Tenable Nessus streamlines the process of scanning for our organization."
"Easy to set up vulnerability scanner with good stability and a responsive technical support team."
"The scanning capabilities are most valuable when compared to Nessus."
"It provides multiple recommendations towards the remedy of vulnerabilities."
"It is a mature tool."
"The most valuable feature of Tenable Nessus is the support it provides for any new vulnerabilities quickly."
"It notifies us of vulnerabilities as they arise, allowing us to respond quickly without manual intervention."
"Nessus is effortless to integrate."
"The platform's most valuable feature is attack simulation."
"Since implementing XM Cyber, we have improved the way we are doing patching, focusing on the choke points in our patching cycle, and it improves the way we assess the risk."
"Six weeks into using XM Cyber, we saw a compelling return on investment—primarily in risk reduction, with a specific issue our other security tooling did not pick up but XM Cyber did, reducing IT remediation time and saving over 60,000 US dollars per year while significantly lowering our loss exposure amount."
"XM Cyber made it clear that browser vulnerabilities were the top priority because the platform was able to examine how vulnerabilities within our estate could be exploited and what the path would be from some bad actor in order to exploit those vulnerabilities."
"What I personally like very much, from my experience, is that it is very reliable."
 

Cons

"Initially, we were somewhat concerned about the scalability of Zafran due to our large asset count and the substantial amount of information we needed to process."
"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"I think the ability to have some enhanced reporting capabilities is something they can improve on, as they have good reports but we have asked for some specific reporting enhancements."
"Consumes more system resources when it's running."
"Pricing is one of the most important features, and it is something that they can improve on."
"They could make their reporting a little better."
"I have found it is sometimes difficult to control the Zoom meeting sessions. For example, it is difficult to know who is talking and when trying to mute everyone but the speaker you end up muting everyone. When using multiple screens it is laborious to find the control buttons, such as to start a session. Additionally, when a recording is done I have found it difficult to find them, there should be an easier way to retrieve them."
"They should try to create an all-in-one solution."
"The inventory management function in this solution needs improvement."
"You can scale Nessus to the extent that you can afford it. You need to have a license for every device you scan. As long as you can afford the increased costs, you won't have a problem scaling it."
"Tenable Nessus could improve the reporting."
"We have high expectations for the next generation, such as a chat interface to ask questions."
"We'd like to see a cheaper price."
"There are many interesting things about XM Cyber, but the part that can be improved is the mobile exposure and the IBM i specific equipment."
"We have not saved any time or effort, but we can prove that the effort involved around vulnerability management has been better spent to greater effect, and we've been able to demonstrate that vulnerabilities that do represent a high risk have been remediated more rapidly and more effectively."
"XM Cyber could identify all areas of vulnerability. They could expand the identification span for different areas."
 

Pricing and Cost Advice

Information not available
"Nowadays, your vulnerability applications are going to be kind of pricey because lots of them, including Rapid7, are based upon a base price, but then they add in the nodes. That's where they get you. If you're a big network, obviously, you need to scan everything. Therefore, it's going to be costly. The risk and insurance money associated with having ransomware on my networks is going to cost me more money, time, and marketing than the price of the tool. That's why I'm speaking only as an information security officer to security operations. This is the tool that is there in my toolbox to say whether we vulnerable or not. At this point, I don't care about how much it costs my company to have it because if I wasn't able to report it and we got ransomware, then who cares? I'm probably going to be out of business because it happened. That's why I don't care about the price. I have it, and I could use it effectively and do my report. At the end of the day, even if we get ransomware, as long as I reported it, followed my protocol, and put in the change, irrespective of whether it was ignored or denied, I did my job."
"While Tenable Nessus is a good enterprise solution, the high price would likely make it prohibitive to smaller organizations."
"I would like to see better discounts."
"The price of the solution is reasonable."
"The price of Tenable Nessus is much more competitive versus other solutions on the market."
"The is a free version of Tenable Nessus available."
"The solution has a single price for unlimited assets."
"Our organization is huge so our license costs $30,000."
"We have to pay standard licensing fees."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
12%
Financial Services Firm
11%
Government
10%
Manufacturing Company
10%
Computer Software Company
14%
Financial Services Firm
10%
Manufacturing Company
10%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise19
Large Enterprise35
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Zafran Security?
Since we stood Zafran Security up in our private cloud, we handle the maintenance on our side. As we opted not to use...
What needs improvement with Zafran Security?
In terms of areas for improvement, Zafran Security is doing a really great job as a new and emerging company. Oftenti...
What is your primary use case for Zafran Security?
My use cases for Zafran Security revolve around two primary areas. One is around vulnerability management and priorit...
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. Yo...
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 ...
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 addre...
What do you like most about XM Cyber?
The platform's most valuable feature is attack simulation.
What is your experience regarding pricing and costs for XM Cyber?
My experience with pricing, setup cost, and licensing was that we have a large, complicated estate, and in the licens...
What needs improvement with XM Cyber?
There are many interesting things about XM Cyber, but the part that can be improved is the mobile exposure and the IB...
 

Overview

 

Sample Customers

Information Not Available
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Hamburg Port Authority, Plymouth Rock Corporation
Find out what your peers are saying about Tenable Nessus vs. XM Cyber and other solutions. Updated: September 2025.
870,697 professionals have used our research since 2012.