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Cortex Cloud by Palo Alto Networks vs Tenable Nessus comparison

 

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

Cortex Cloud by Palo Alto N...
Ranking in Vulnerability Management
28th
Average Rating
8.6
Reviews Sentiment
5.5
Number of Reviews
7
Ranking in other categories
Cloud Workload Protection Platforms (CWPP) (13th), Cloud Security Posture Management (CSPM) (18th), Cloud-Native Application Protection Platforms (CNAPP) (13th), Data Security Posture Management (DSPM) (12th), Software Supply Chain Security (8th), Cloud Infrastructure Entitlement Management (CIEM) (7th), Application Security Posture Management (ASPM) (6th), Cloud Detection and Response (CDR) (5th)
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

reviewer1980216 - PeerSpot reviewer
Business Development Manager For Palo Alto Networks at a tech services company with 1,001-5,000 employees
Unified security platform has simplified multi-cloud protection and improved threat response
From the commercial perspective, we have some limitations because Palo Alto has a minimum number of users of endpoints set at 200, which is quite high for the Italian market. Additionally, there is not a clear MSP model compared to other vendors such as CrowdStrike. These are significant limitations, especially today when managed services are becoming increasingly important for end users. Palo Alto decided to limit some functionalities because they want to stress more on Cortex XSIAM. I do not agree with this strategy because Cortex XSIAM is a completely different market compared to Cortex XDR. This is the main issue of Cortex—the commercial model Palo Alto is implementing. The product is very good; the problem is the commercial model. There are probably some areas for improvement because Palo Alto is growing too much. Today the challenge is to have skilled people, which I believe is the same issue everywhere. I do not agree with this decision.
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

"The most beneficial aspect of Cortex Cloud by Palo Alto Networks and Palo Alto in general is that there is a single platform for all cloud providers for securitization."
"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."
"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."
"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."
"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."
"From a technical standpoint or pricing, Cortex Cloud by Palo Alto Networks is a stronger solution in the market at the moment compared to other products from ConnectWise or Symantec."
"Overall, Cortex Cloud by Palo Alto Networks is a technically strong product, and I rate it ten out of ten."
"The automatic scanner and scheduler are pretty cool."
"Easy to set up vulnerability scanner with good stability and a responsive technical support team."
"It gives you an unlimited IP scan."
"The features of Tenable Nessus that I have found most valuable are its reliability and its ability to collate a dependable output, where we are able to get the same vulnerability when we test manually. The output is quite reliable."
"Tenable Nessus is one of the best vulnerability assessment tools, that I know."
"The stability is very good."
"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."
"Its initial setup was simple and straightforward."
 

Cons

"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."
"The negative aspects or areas for improvement in the product include the fact that the cost might be a bit high, which challenges commercials, but not technically."
"Some aspects of the GUI can be confusing and make it difficult for me to find certain options or navigate where needed."
"The pricing is high, making ROI challenging to justify, especially during transitions between solutions."
"Cortex Cloud by Palo Alto Networks is creating some confusion in terms of names because this is recent."
"From the commercial perspective, we have some limitations because Palo Alto has a minimum number of users of endpoints set at 200, which is quite high for the Italian market."
"The price could be more reasonable. I used the free Nessus version in my lab with which you can only scan 16 IP addresses. If I wanted to put it in the lab in my network at work, and I'm doing a test project that has over 30 nodes in it, I can't use the free version of Nessus to scan it because there are only 16 IP addresses. I can't get an accurate scan. The biggest thing with all the cybersecurity tools out there nowadays, especially in 2020, is that there's a rush to get a lot of skilled cybersecurity analysts out there. Some of these companies need to realize that a lot of us are working from home and doing proof of concepts, and some of them don't even offer trials, or you get a trial and it is only 16 IP addresses. I can't really do anything with it past 16. I'm either guessing or I'm doing double work to do my scans. Let's say there was a license for 50 users or 50 IP addresses. I would spend about 200 bucks for that license to accomplish my job. This is the biggest complaint I have as of right now with all cybersecurity tools, including Rapid7, out there, especially if I'm in a company that is trying to build its cybersecurity program. How am I going to tell my boss, who has no real budget of what he needs to build his cybersecurity program, to go spend over $100,000 for a tool he has never seen, whereas, it would pack the punch if I could say, "Let me spend 200 bucks for a 50 user IP address license of this product, do a proof of concept to scan 50 nodes, and provide the reason for why we need it." I've been a director, and now I'm an ISO. When I was a director, I had a budget for an IT department, so I know how budgets work. As an ISO, the only thing that's missing from my C-level is I don't have to deal with employees and budgets, but I have everything else. It's hard for me to build the program and say, "Hey, I need these tools." If I can't get a trial, I would scratch that off the list and find something else. I'm trying to set up Tenable.io to do external PCI scans. The documentation says to put in your IP addresses or your external IP addresses. However, if the IP address is not routable, then it says that you have to use an internal agent to scan. This means that you set up a Nessus agent internally and scan, which makes sense. However, it doesn't work because when you use the plugin and tell it that it is a PCI external, it says, "You cannot use an internal agent to scan external." The documentation needs to be a little bit more clear about that. It needs to say if you're using the PCI external plugin, all IP addresses must be external and routable. It should tell the person who's setting it up, "Wait a minute. If you have an MPLS network and you're in a multi-tenant environment and the people who hold the network schema only provide you with the IP addresses just for your tenant, then you are not going to know what the actual true IP address that Tenable needs to do a PCI scan." I've been working on Tenable.io to set up PCI scans for the last ten days. I have been going back and forth to the network thinking I need this or that only to find out that I'm teaching their team, "Hey, you know what, guys? I need you to look past your MPLS network. I need you to go to the edge's edge. Here's who you need to ask to give me the whitelist to allow here." I had the blurb that says the plugin for external PCI must be reachable, and you cannot use an internal agent. I could have cut a few days because I thought I had it, but then when I ran it, it said that you can't run it this way. I wasted a few hours in a day. In terms of new features, it doesn't require new features. It is a tool that has been out there for years. It is used in the cybersecurity community. It has got the CV database in it, and there are other plugins that you could pass through. It has got APIs you can attach to it. They can just improve the database and continue adding to the database and the plugins to make sure those don't have false positives. If you're a restaurant and you focus on fried chicken, you have no business doing hamburgers."
"Tenable Nessus could include a broader range of IT assets."
"We have had some false positives in the past, which we hope can improve in the future."
"Nessus' reporting could be more user-friendly."
"The product must be more comprehensive."
"They should try to create an all-in-one solution."
"Model OS costs (and its segregation schema for individual modules)."
"Technically, it is an excellent and the best solution available in Libya. My only concern is related to its pricing. They are an emerging company in Libya, and they need to put in some effort to provide us with very good prices so that customers can go with the best solution. Chinese companies are getting into the market here, and they're providing very cheap solutions."
 

Pricing and Cost Advice

Information not available
"It has a fair cost and very good cost-benefit ratio."
"Cost-wise, it's an affordable tool."
"Its pricing is great and can't be improved. It is very cheap. It is less than 2,000 pounds a license, and you can't really ask for more. It has unlimited IPs and unlimited scans. There are no particular pricing constraints. The only additional cost is the inherent cost of the people to actually review the actual scans."
"We paid about six thousand dollars per license."
"The price of the solution is reasonable."
"There is an annual license required to use this solution."
"The newer tools are quite pricey. There is a case of some fine tuning that can be done in terms of licensing. The IP based licensing that is offered makes the tool very expensive. If they want the IT industry to adopt it, the price should be looked at."
"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."
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Top Industries

By visitors reading reviews
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
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise2
By reviewers
Company SizeCount
Small Business39
Midsize Enterprise19
Large Enterprise35
 

Questions from the Community

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 small-scale vendors.
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 Networks products can be frustrating for technical teams who must continually adapt...
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 integration between our multi-cloud infrastructure, specifically AWS and Azure, to gain...
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

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: February 2026.
881,733 professionals have used our research since 2012.