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Stellar Cyber Open XDR vs Zscaler Client Connector comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Feb 8, 2026

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 XDR by Palo Alto Net...
Sponsored
Ranking in Endpoint Detection and Response (EDR)
5th
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
118
Ranking in other categories
Endpoint Protection Platform (EPP) (4th), Extended Detection and Response (XDR) (4th), Ransomware Protection (2nd), AI-Powered Cybersecurity Platforms (1st)
Stellar Cyber Open XDR
Ranking in Endpoint Detection and Response (EDR)
55th
Average Rating
0.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
Security Information and Event Management (SIEM) (42nd), User Entity Behavior Analytics (UEBA) (29th), Network Traffic Analysis (NTA) (18th), Security Orchestration Automation and Response (SOAR) (25th), Network Detection and Response (NDR) (21st), Extended Detection and Response (XDR) (34th), Identity Threat Detection and Response (ITDR) (23rd)
Zscaler Client Connector
Ranking in Endpoint Detection and Response (EDR)
24th
Average Rating
8.8
Reviews Sentiment
5.9
Number of Reviews
6
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Endpoint Detection and Response (EDR) category, the mindshare of Cortex XDR by Palo Alto Networks is 3.6%, down from 3.9% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.0%, up from 0.6% compared to the previous year. The mindshare of Zscaler Client Connector is 0.6%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Endpoint Detection and Response (EDR) Mindshare Distribution
ProductMindshare (%)
Cortex XDR by Palo Alto Networks3.6%
Zscaler Client Connector0.6%
Stellar Cyber Open XDR1.0%
Other94.8%
Endpoint Detection and Response (EDR)
 

Featured Reviews

ABHISHEK_SINGH - PeerSpot reviewer
Senior Process Expert at A.P. Moller - Maersk
Gained full visibility and streamlined threat detection through behavior-based insights and AI integration
Initially, we got to have a lot of false positives when we onboarded, but nowadays it's quite smooth. We have fine-tuned our security policies and allowed different levels of policies to get rid of those false positives. Currently, we are getting a fairly good amount of incidents that are not false positives or benign, but actionable items. The process is streamlined. In the initial days, the operations used to get involved in a lot of benign and other activities, but now the process is streamlined. We are leveraging the auto-detection and remediation plans. The operations teams are now more involved in other business roles as well, not just looking into the logs and fetching out what's happening there. They have fixed a lot of things. Initially, they didn't have IAC code drift detection, cloud posture management, or security posture management, but they have those now. They purchased different vendors and did a merger with that. They have now Prisma Cloud that gets integrated and now they are working with Cortex Cloud. Everything that was negative has now been addressed, and the product altogether looks to be in a very better and mature shape now. Currently, it's more or less detecting the workloads with AI-based best practices. Since most organizations are consuming AI agents and other things, we are looking forward to seeing what other feature enhancements Palo Alto can support in that.
JC
Global Director, Commercial Operations at Promasecure LLC
Automated security monitoring increases efficiency, but market visibility needs improvement
I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvement as of now. Their support is good, and the team is small, enabling them to cater to everyone effectively. While I have not encountered significant drawbacks so far, market penetration is challenging due to the product's newness, despite its flexibility and customization features. I find their user interface to be quite good.
DA
IT Support Admin at Kuehne & Nagel Inc.
Client activity has been monitored efficiently through in-depth log analysis and traffic filtering
I use the Zscaler speed test, and it is very nice. We use some logs from Zscaler Client Connector to collect data and see what is happening, such as if there is an interruption or something. There is a specific tunnel version that we have to use because, depending on the internet provider, some of them have lower speed, so we have some issues. This is because of the provider, not from Zscaler. We use Office 365 services and Office applications, and because some connections are slow and they do not have full coverage from the internet provider, we have some issues. If the speed is slow for Zscaler Client Connector connection, then we have issues because if the speed is not good, then Zscaler Client Connector goes down. This may be because they put some policy. Of course, if you use Office 365 services such as Outlook, the minimum bandwidth is 5 megabits and more, so this causes issues if the users do not have a good remote connection. This depends on the companies and the users, so they need to fix it. This is not from us or our company. It is very useful, and the logs are very helpful. When we go to logs, we understand what is happening.

Quotes from Members

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

Pros

"The most valuable features are incident creation, policy-based protection, IP whitelisting, and device encryption. These are beneficial for endpoint and server security."
"One of the main benefits of the solution is its intelligence to correlate the events into an incident."
"The normal protection was really effective, and we detected situations that if we didn't have Cortex XDR by Palo Alto Networks, it's highly likely that we would have been affected, but it protected the infrastructure."
"I generally believe that Cortex XDR by Palo Alto Networks is probably the best in the market right now."
"The most valuable for us is the correlation feature."
"The stability is pretty good except for one or two cases, and based on the performance, it's been okay with pretty high performance, no bugs or glitches, and it doesn't crash or freeze."
"The tool is easy to use."
"I recommend this solution to others because it is easy to manage, reliable, and overall good to use."
"It can integrate with almost any cybersecurity tool available in the market."
"Stellar Cyber Open XDR offers these functionalities at a more affordable price, making it easier for me to position it with price-sensitive customers."
"Zscaler Client Connector is quite scalable, and I would rate its scalability as nine or ten out of ten."
"It is very important to see what is happening between the user and the applications that we have, and to filter the traffic from outbound traffic and inside traffic."
"The solution operates in the background seamlessly without the user noticing."
"It is very useful, and the logs are very helpful; when we go to logs, we understand what is happening."
"I'd rate the solution nine out of ten."
"The best features of Zscaler Client Connector are that it gives the client a much more transparent experience, as they don't have to worry about connecting to a VPN."
"The real-time analytics feature in Zscaler Client Connector is another valuable feature called Digital Experience, or ZDX, which can easily identify the root cause of issues accessing public or internal resources and provide good analysis so relevant teams can quickly resolve them, making it a very good tool that helps customers."
"Zscaler Client Connector has eliminated VPN bottlenecks and outages, improved user productivity with instant secure access, and reduced help desk tickets related to VPN issues, overcoming 60% of VPN-related problems while allowing faster onboarding of remote users and better enforcement of zero-trust security policies."
 

Cons

"Whenever the tool releases a new version when deploying the product across the organization, I feel like there are some disturbances in the CPU usage after upgrading the tool to the latest version."
"The playbooks could be improved to include more functionalities or actions."
"When it comes to malware files, it should be a little quick because, at times, it would give a wrong result in the sense of what it might be on malware, even if it still might be a normal one."
"Data privacy is a matter of concern. You have to be careful with data privacy, it can be sensitive and Cortex can have most of your access."
"The configuration could be simplified. I would like to see better protection, specifically to protect email applications."
"The GUI could be improved. It's a little bit cumbersome. It could be more user-friendly."
"The onboarding process could be better."
"It is not a suitable solution if you are looking for a single product with multiple features such as DLP, encryption, rollback, etc."
"I would rate the stability at about five to six. The platform requires some fine-tuning, especially when integrating data sources and creating connectors."
"Support is an issue because they have a limited number of resources."
"There is room for improvement regarding the price of Zscaler Client Connector, as it is one of the most expensive solutions available."
"There is a hard learning curve for Zscaler Client Connector; their support isn't the greatest all the time."
"If the speed is slow for Zscaler Client Connector connection, then we have issues because if the speed is not good, then Zscaler Client Connector goes down."
"The stability of Zscaler Client Connector needs improvement, as it often disconnects and reconnects."
"I rate this product nine out of ten because I have seen some minor instability issues after updates and some room for UI improvement for deeper analytics, with instances of major issues after updating the GCC that required rollbacks."
"Zscaler Client Connector is not low in cost; it is definitely on the higher side."
 

Pricing and Cost Advice

"Licensing for Palo Alto Networks Cortex XDR can be costly, especially when it comes to a hundred users. A license is required for each user, and the subscription must be renewed on a yearly basis."
"I don't like that they have different types of licenses."
"Cortex XDR by Palo Alto Networks is an expensive solution."
"The pricing seems fair, and I do like the licensing model. You use wherever they are, and it is elastic."
"Very costly product."
"I don't recall what the cost was, but it wasn't really that expensive."
"It is present, but when compared to other competitive products, I would say it is not less expensive; however, when all of the other added values are considered, the price is reasonable."
"The price of the product is not very economical."
"It’s a single license platform."
Information not available
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Top Industries

By visitors reading reviews
Outsourcing Company
12%
Comms Service Provider
12%
Construction Company
11%
Financial Services Firm
9%
Manufacturing Company
14%
Comms Service Provider
10%
Outsourcing Company
9%
Financial Services Firm
7%
Manufacturing Company
18%
Comms Service Provider
10%
Construction Company
8%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business47
Midsize Enterprise21
Large Enterprise55
No data available
By reviewers
Company SizeCount
Small Business3
Large Enterprise5
 

Questions from the Community

Cortex XDR by Palo Alto vs. Sentinel One
Cortex XDR by Palo Alto vs. SentinelOne SentinelOne offers very detailed specifics with regard to risks or attacks. ...
Comparing CrowdStrike Falcon to Cortex XDR (Palo Alto)
Cortex XDR by Palo Alto vs. CrowdStrike Falcon Both Cortex XDR and Crowd Strike Falcon offer cloud-based solutions th...
How is Cortex XDR compared with Microsoft Defender?
Microsoft Defender for Endpoint is a cloud-delivered endpoint security solution. The tool reduces the attack surface,...
What is your experience regarding pricing and costs for Stellar Cyber Open XDR?
Pricing is a major benefit of Stellar Cyber Open XDR. I rate it between three and four on the cost scale. It offers f...
What needs improvement with Stellar Cyber Open XDR?
I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvem...
What is your primary use case for Stellar Cyber Open XDR?
I use Stellar Cyber Open XDR ( /products/stellar-cyber-open-xdr-reviews ) as a 24/7 security monitoring tool, especia...
What is your experience regarding pricing and costs for Zscaler Client Connector?
My experience with pricing, setup cost, and licensing is that the pricing is fair, though it is a bit costly. It oper...
What needs improvement with Zscaler Client Connector?
For Zscaler Client Connector, I would appreciate more granular control over the client update rollout and slightly fa...
What is your primary use case for Zscaler Client Connector?
My main use case of Zscaler Client Connector is to provide secure, seamless access to the internet and internal appli...
 

Also Known As

Cyvera, Cortex XDR, Palo Alto Networks Traps
No data available
No data available
 

Overview

 

Sample Customers

CBI Health Group, University Honda, VakifBank
Sumitomo Chemical USA, PlastiPak Packaging, University of Denver, Large California State Agency, Large Midwestern American City
Information Not Available
Find out what your peers are saying about Stellar Cyber Open XDR vs. Zscaler Client Connector and other solutions. Updated: September 2026.
913,806 professionals have used our research since 2012.