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Cortex Cloud by Palo Alto Networks vs Tenable Nessus comparison

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Comparison Buyer's Guide

Executive Summary

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
18th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (3rd)
Cortex Cloud by Palo Alto N...
Ranking in Vulnerability Management
38th
Average Rating
8.6
Reviews Sentiment
5.4
Number of Reviews
5
Ranking in other categories
Cloud Workload Protection Platforms (CWPP) (17th), Cloud Security Posture Management (CSPM) (23rd), Cloud-Native Application Protection Platforms (CNAPP) (16th), Data Security Posture Management (DSPM) (14th), Software Supply Chain Security (14th), Cloud Infrastructure Entitlement Management (CIEM) (7th), Application Security Posture Management (ASPM) (9th), Cloud Detection and Response (CDR) (9th)
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
 

Featured Reviews

Reviewer6233 - PeerSpot reviewer
Works at a healthcare company with 10,001+ employees
Has become an indispensable tool in our cybersecurity arsenal
While Zafran Security is already a powerful tool, there are areas where it could be further improved to provide even greater value. One key area for enhancement is the searching capabilities within its vulnerabilities module. By incorporating the ability to create Boolean searches, users would gain the ability to apply more complex filters and customize their search criteria. This would greatly enhance the precision and efficiency with which security teams can identify and prioritize vulnerabilities. Having such tailored search capabilities would save time and resources by narrowing down vast lists of vulnerabilities to those that meet specific parameters relevant to our unique risk environment. Additionally, integrating more robust reporting and visualization tools would be advantageous. Enhanced dashboards that offer customizable visual representations of risk configurations and threat landscapes would facilitate better communication with stakeholders, making it easier to explain vulnerabilities and the rationale behind certain security measures. This would also aid in demonstrating the improvements and value derived from existing security investments to leadership and non-technical team members.
Nuno-Santos - PeerSpot reviewer
Cybersecurity Analyst at a tech services company with 11-50 employees
Has improved real-time threat detection and unified cloud protection through AI and automation
Cortex Cloud by Palo Alto Networks is creating some confusion in terms of names because this is recent. They changed the names of the products and are now clarifying their offer. The family of the products is not easy to follow because it's very recent. Regarding the generative AI security tool, I know for sure it's Agentic. Based on my experience with Palo Alto, I can suggest what Cortex Cloud by Palo Alto Networks could make better or what additional functions could be added. This is the best tool in the market. It's not the time to tell what they could do better because it's a recent tool. The market is now adopting it. Our experience doesn't show that they need to do more.
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.

Quotes from Members

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

Pros

"Zafran has become an indispensable tool in our cybersecurity arsenal."
"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."
"With Zafran Security, it integrates with your security controls, allowing you to take that risk score and reduce it based on the controls in place or increase the risk based on different factors, such as if the issue is internet reachable or if there's an exploit in the wild."
"We saw benefits from Zafran Security almost immediately after deploying it."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"I have absolutely seen improvements in our incident close rates, with mean time to detect and respond reduced significantly, sometimes by at least forty to fifty percent."
"The AI and automation features in detecting and responding to high-risk threats are impressive; it's one of the best tools regarding AI technology and unifies security in one platform in real-time, improving vulnerability analysis, incident response, and compliance reporting."
"Overall, Cortex Cloud by Palo Alto Networks is a technically strong product, and I rate it ten out of ten."
"I have seen several benefits from using Cortex Cloud by Palo Alto Networks: It was easy to use and easy to migrate from the IBM platform."
"Cortex Cloud by Palo Alto Networks has impacted our organization positively by keeping our machines secure and our team using the dashboard to find issues quickly."
"I have experience with it on my attack stations, and it's pretty good to optimize. Personally, I think Nessus is quite a good product."
"Among the most valuable features are scanning for vulnerabilities and the reporting. The reporting templates are okay. I like that I can see all the hosts with different vulnerabilities."
"It notifies us of vulnerabilities as they arise, allowing us to respond quickly without manual intervention."
"The most valuable feature of Tenable Nessus is real-time monitoring."
"It does exactly what you expect it to do, and its pricing is great. We couldn't really ask for a better deal."
"The most valuable features of Tenable Nessus include its ease of access and quick usability."
"The stability is very good."
"User friendly and good dashboards."
 

Cons

"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"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."
"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."
"The pricing is high, making ROI challenging to justify, especially during transitions between solutions."
"Overall, I rate Cortex Cloud by Palo Alto Networks as an eight out of ten. I think that it could improve on price, as I know that the Google solution has the best price, and this is one of the conditions."
"Some aspects of the GUI can be confusing and make it difficult for me to find certain options or navigate where needed."
"Cortex Cloud by Palo Alto Networks is creating some confusion in terms of names because this is recent."
"Lacks some penetration testing-related services."
"They have added a new Tenable Nessus Expert. That is their new product, which caters to the cloud and everything else. I am assuming that the new features and product enhancements are based on that tool set, but we haven't reviewed it yet."
"We use credentialed scans. They need more permissions and more changes or settings on Windows and Linux."
"They could make their reporting a little better."
"Tenable Nessus could improve by having more steady updates which will reduce the vulnerabilities."
"Model OS costs (and its segregation schema for individual modules)."
"The reporting could be improved. The reporting in Rapid7 is much better."
"The scalability of Tenable Nessus is good. However, it could be more flexible."
 

Pricing and Cost Advice

Information not available
Information not available
"Its price is high for Libya. The companies here in Libya don't have the awareness of and a good budget for cybersecurity services. If you want them to go for a product, you need to provide something different. This differentiation is related to the price. They should give about 40% to 45% discount per person on the current cost."
"The price of the solution is reasonable."
"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."
"There is an annual license required to use this solution."
"The price of Tenable Nessus could improve, it is expensive."
"While Tenable Nessus is a good enterprise solution, the high price would likely make it prohibitive to smaller organizations."
"The price of the solution is reasonable."
"The price is high for the solution. There are free tools with similar functionality available. The solution cost approximately $3,500."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Manufacturing Company
8%
Computer Software Company
8%
Outsourcing Company
6%
Performing Arts
10%
Financial Services Firm
10%
Manufacturing Company
9%
Computer Software Company
8%
Financial Services Firm
10%
Government
10%
Manufacturing Company
10%
Computer Software Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
By reviewers
Company SizeCount
Small Business39
Midsize Enterprise19
Large Enterprise35
 

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...
What is your experience regarding pricing and costs for Cortex Cloud by Palo Alto Networks?
The solution is costly, with high-end capabilities suitable for enterprises. It is less affordable for startups or sm...
What needs improvement with Cortex Cloud by Palo Alto Networks?
Regarding areas for improvement, the tool performs its functions well, but frequent name changes across Palo Alto Net...
What is your primary use case for Cortex Cloud by Palo Alto Networks?
Cortex Cloud by Palo Alto Networks serves as our primary tool for understanding our assets and performing API integra...
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...
 

Overview

 

Sample Customers

Information Not Available
Information Not Available
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Find out what your peers are saying about Cortex Cloud by Palo Alto Networks vs. Tenable Nessus and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.