Cisco Duo vs Zscaler Zero Trust Exchange Platform comparison

Cisco and Zscaler are both solutions in the ZTNA as a Service category. Cisco is ranked #4 with an average rating of 8.8, while Zscaler is ranked #1 with an average rating of 8.5. Cisco holds a 2.3% mindshare in ZaaS, compared to Zscaler’s 15.3% mindshare. Additionally, 96% of Cisco users are willing to recommend the solution, compared to 98% of Zscaler users who would recommend it.

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Executive SummaryUpdated on Nov 2, 2025

Cisco Duo and Zscaler Zero Trust Exchange Platform are key players in the security solutions market, with each offering distinctive strengths. Cisco Duo seems to have an advantage in deployment ease and multi-factor authentication, while Zscaler excels in its cloud-native zero-trust architecture.

Features: Cisco Duo offers robust multi-factor authentication options, including methods that do not require a smartphone, making it accessible to a broader range of users. Its single-pane-of-glass management enhances administrative ease and security oversight. Zscaler provides comprehensive cloud-based security with advanced threat protection and the ability to secure applications without traditional VPNs, notable for its data protection and visibility capabilities.

Room for Improvement: Cisco Duo could improve in integrating with other systems and refining its management features, as well as enhance password management and customizable notifications. Zscaler users suggest improvements in legacy system support, scalability, and pricing transparency, along with increased flexibility in integration.

Ease of Deployment and Customer Service: Cisco Duo is noted for its swift deployment across various environments, with high customer satisfaction concerning support responsiveness and effectiveness. Conversely, while Zscaler offers straightforward cloud deployment, it receives criticism for slower support response times compared to Cisco Duo.

Pricing and ROI: Cisco Duo is viewed as cost-effective with a transparent licensing model suitable for smaller businesses, contributing positively to security ROI and insurance premium reduction. Zscaler's pricing is seen as higher, especially for advanced features, though users see value in the security provided. Suggestions for pricing flexibility and transparency are common feedback for Zscaler.

To learn more, read our detailed Cisco Duo vs. Zscaler Zero Trust Exchange Platform Report (Updated: December 2025).

Buyer's Guide

Cisco Duo vs. Zscaler Zero Trust Exchange Platform

December 2025

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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

iboss

Mindshare comparison

As of February 2026, in the ZTNA as a Service category, the mindshare of iboss is 2.3%, up from 1.6% compared to the previous year. The mindshare of Cisco Duo is 2.3%, down from 2.4% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 15.3%, down from 18.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

ZTNA as a Service Market Share Distribution
Product	Market Share (%)
Zscaler Zero Trust Exchange Platform	15.3%
Cisco Duo	2.3%
iboss	2.3%
Other	80.1%

ZTNA as a Service

Featured Reviews

reviewer2701851

Managing Director

Enhances web security with a single pane of glass and flexible deployment

I don't see any need for improvement; one of the really good things about iboss as a company is that they listen to customer feedback. I have suggested enhancements, and they are responsive, making changes for the better, and they do a lot of testing. To improve iboss, although we haven't used it, we considered the VPN solution that comes with the highest tier licensing, which includes DLP and various other add-ons. We prefer using another product which automatically logs you back onto your network when turning on your PC. With iboss, the connection is manual, which doesn't meet our needs. Additionally, sizing can be tricky because, although the initial recommendations may seem adequate, actual usage may require more gateways than anticipated.

Read full review

Charles Slaustas

Information Technology Contractor at Insight global

Supports seamless authentication for users across multiple organizations and personal portals

The features I use in Cisco Duo include Duo Pushes to confirm my identity to the device, and eventually as MFA security was increased, I actually had to use exchange passcodes. Sometimes, I have to go into the site and get into Cisco Duo to retrieve the passcode, and many of them have been two-factor, where the sites send a passcode that I have to enter into Cisco Duo. It has been more of the latter. I have not seen issues with lagging or crashing on Cisco Duo's end; it was usually on the client end, often because someone set up a bad upgrade or there were connection issues with the Cisco Duo cloud through the administrative site.

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TarunKumar5

Lead Engineer at FIS Global

Elevating security with cost-effective features and robust integration

The platform offers advanced threat protection features and embedded AI/ML capabilities, making it more proactive in blocking threats. We can create different types of controls such as access controls, file type controls, and cloud app controls to manage user access. The solution is beneficial for remote work environments by providing extra security features that VDI cannot provide. Data loss prevention features are available, particularly network data loss prevention. We can create various regex and other rules in Zscaler DLP. The platform saves workforce hours and integrates with various tools and technologies, which has increased our security posture. We can integrate with SIEM, our AV platform, XDR, and EDR.

Read full review

Quotes from Members

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

Pros

"iboss is easy to use despite its complexity. Multiple engineers manage it, but it's significantly more straightforward to administer than traditional VPNs and web proxies."

"The iboss system is highly reliable. The false positive rates are small compared to some other systems we've experienced through other partner agencies who use competing solutions."

"Iboss is a solution that prevents advanced persistent threats, and has a zero tolerance for attacks."

"iboss is pretty scalable. They provide good support. The case managers you work with to coordinate what you need are pretty good."

"iboss has significantly lowered the number of security incidents. It is crazy how much it blocks and how much it is aware of the outside danger."

"The security aspect of the solution, particularly the malware behind it, is excellent. That's something that really helped us out. It's not just a simple proxy that just blocks the insights of potential threats that come on behind it. They do malware detection and that helps us a lot."

"iboss is among the few products providing inline filtering where no application is needed on the device. It operates on the network side and is not device-based. This feature was one of the main reasons why we stayed with them for so long."

"Valuable features: Within the filter: Controls (Web categories, applications, and Allow/Block list) and Network (local Subnets). Within the reporter: Logs (Event Log) and Reports."

More iboss pros

"Duo Security improved my organization by helping us secure all access points within the company infrastructure."

"The thing that I appreciate the most about Cisco Duo is the ease of setup."

"The feature of Cisco Duo that I appreciate most is the push notifications."

"The anti-phishing feature is the most valuable."

"I love Duo Security's push notifications. It's simple, fast, and secure. From the user's perspective, the solution is seamless. The security aspect is great."

"It was a simple way of providing two-factor authentication for remote access when we hit the COVID pandemic. It was very easy and quick to get it going."

"For one of my clients, the ROI was somewhere between 25 to 27 percent in year one."

"For me, the biggest return on investment when using Cisco Duo is my time."

More Cisco Duo pros

"The product provides a seamless user experience."

"The solution is cloud-based with the latest inspection engines, which I find to be amazing."

"You can close your data protection gaps with Zscaler. You can quickly find all the classified, sensitive data across the cloud."

"The platform offers advanced threat protection features and embedded AI/ML capabilities, making it more proactive in blocking threats."

"The user interface of Zscaler Private Access is excellent. With proper knowledge and expertise, one can efficiently handle intricate enterprise environments without feeling overwhelmed. This leads to exceptional productivity for managed service providers. The user experience is remarkably streamlined, enabling the management of even the most complex enterprise setups without any excessive complications."

"The best feature is the ability to establish the connection between your public network and automatically connect to the intranet connection."

"It is a stable solution."

"Yes, it is very stable. I have never seen it go down, not once."

More Zscaler Zero Trust Exchange Platform pros

Cons

"Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern."

"The reporting feature needs improvement."

"The dashboards for local use could be better."

"For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company ExxonMobil."

"Sometimes when you call in support, you get someone who is just following a sheet. It feels like a runaround. You feel that you are running into that support wall."

"To scale up, a new iboss Node Blade Chassis must be purchased."

"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."

"Fold that in with the risk intelligence they're getting from all of the different subscriptions they are a part of. Now, these security companies subscribe to things like emerging threats, databases, etc. You can fold all this intelligence to decide what's happening on an endpoint. I would love to see them start moving into that space. That would compete directly with Microsoft. Maybe that's why they haven't. Having that ability native within the solution would be great. The other area in which I would love to see improvement is more detailed descriptions of why they block websites."

More iboss cons

"I'm unsure how to disable the ping notification sound on my phone when using Cisco Duo. I don't know how to silence it."

"Cisco Duo can be improved by exploring a way to make it a more seamless integration and by deploying an in-house server."

"Cisco Duo can be improved with better ways to set users up. Currently, we might not be doing it perfectly as we're having them email in phone numbers to get them set up with Duo Mobile."

"Cisco Duo could be improved if there were a way to make two-factor authentication quicker."

"Improving Cisco Duo might involve alerting us about telephony credits when people receive texts. We hit zero at one point, and we were running around in circles without any idea until I discovered it."

"My experience with Cisco Duo's strong security authentication system is that sometimes there are difficulties, and sometimes users just won't be able to log in. We have to reset their password so they can use Duo."

"I'm not a big fan of relicensing products every year or two years, but that's the model at the moment. I prefer to go back to licensing perpetually or permanent licensing."

"Integration between Duo Security and FTDs needs improvement. Integrating Next Generation Firewall safety with Duo Security currently requires a proxy agent between Active Directory and the appliance. It's an additional factor that we need to think about. It would be great to have direct integration with FTD so that we don't have to worry about middleware products. For the rest of the Cisco Secure solutions, the APIs need improvement."

More Cisco Duo cons

"There could be more DLP-related features. Additionally, there needs to be flexibility for integrating ISP features."

"On the improvement side, when we bypass certain internet traffic types, it's currently recommended to have a one-click option, but audio and video aren't always supported. Thus, we need to bypass that kind of traffic. So, it is an area of improvement."

"The only issue with Zscaler Cloud DLP is that it only gives you DLP protection from web traffic, which is flowing out, while a full-blown DLP solution such as Forcepoint or Symantec gives you DLP coverage for multiple channels. Zscaler Cloud DLP doesn't give you coverage for email, fax, and USB channels, and this is the only challenge or room for improvement in the solution. It's just an extension on top of what you're buying on the proxy, so it's just an added layer, and it doesn't cover DLP on a very broad level. I'm unsure if Zcaler is in the business of competing with a full-blown DLP solution, and if there's a plan to expand the features of Zscaler Cloud DLP beyond the web channel because you'll have to deploy a full-blown agent for it. I'm unsure if this is on the cards because the solution is just an added layer that you get with your proxy. I've asked the Zcaler team whether there's a plan to go full DLP in the future, but I didn't get a positive response. There isn't any feature I'd like added to Zscaler Cloud DLP currently, because anything you could think of that should be in cloud or SaaS solutions is already there, except for machine learning, as it's the only functionality that seems to be lacking in the solution. Machine learning is an additional policy available in other DLP solutions in the market, but my team didn't find it in Zscaler Cloud DLP."

"Sometimes, support takes time since the solution has some bugs that need fixing."

"Occasionally, issues arise in the LogStack by a third party, particularly for government websites accessed by numerous users."

"Zscaler CASB should include integrations with other SaaS applications."

"We would like to extend the SASE applications for Zscaler."

"Having a Zscaler-specific device could streamline this process and provide a more consistent user experience across diverse branches."

More Zscaler Zero Trust Exchange Platform cons

Pricing and Cost Advice

"The overall pricing for iboss is very competitive and transparent."

"It is expensive compared to one of its competitors."

"It is probably in line with other solutions, but I do not deal with the financial side."

"We had the cost of purchasing a new appliance along with the implementation and licensing costs. However, the following year, the cost of just licensing was similar to what was paid the previous year for a new appliance along with the implementation and licensing costs."

"We have not priced the solution recently, but they were competitive with other vendors in the past."

"It is not expensive, and it is also not cheap. iboss is priced right in the sweet spot for the number of features it offers."

"Duo Security is free."

"The licensing is very good because it does not cost a lot of money. It's affordable for all-sized customers, including enterprises. There is an additional cost for premium support."

"It was very reasonable."

"Cisco has the most expensive products because market leaders tend to charge a lot."

"I believe the licensing model is excellent as it offers flexibility to our customers, allowing them to adopt a crawl, walk, or run approach."

"During testing we are allowed a certain number of licenses for free."

"The product’s pricing is reasonable."

"I haven't seen it in a while, but it's at par with everything else licensing-wise."

More Cisco Duo pricing and cost advice

"The pricing is expensive and on the higher end. Honestly, in my opinion, it is not worth the price."

"In the long run, cloud services are not inherently costly."

"The licensing model for Zscaler Cloud DLP allows you to only buy what you need. You don't need to buy it as a whole, so it's good."

"The solution has increased prices this year."

"Zscaler DLP solution is expensive, with a fixed pricing structure that is billed annually and monthly. There are no additional costs for licenses."

"It's expensive currently. But when purchasing for a large number of users, there's room to negotiate. It's really up to the procurement team."

"Zscaler Private Access can be an expensive solution, depending on the license type you will purchase."

"Zscaler CASB is an expensive solution."

More Zscaler Zero Trust Exchange Platform pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

11%

Computer Software Company

10%

Manufacturing Company

Comms Service Provider

Manufacturing Company

11%

Computer Software Company

Comms Service Provider

Financial Services Firm

13%

Computer Software Company

11%

Manufacturing Company

10%

Insurance Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	6
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	34
Midsize Enterprise	18
Large Enterprise	40

By reviewers
Company Size	Count
Small Business	16
Midsize Enterprise	12
Large Enterprise	42

Questions from the Community

What needs improvement with iboss?

For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company Exxon...

See all answers

What is your primary use case for iboss?

Previously when I used iboss, we did the POC for iboss for ExxonMobil. Four or five people wanted to move from our ol...

See all answers

What is your experience regarding pricing and costs for iboss?

Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern. There are cheaper alte...

See all answers

How does Duo Security compare with Microsoft Authenticator?

We switched to Duo Security for identity verification. We’d been using a competitor but got the chance to evaluate Du...

See all answers

What is your experience regarding pricing and costs for Duo Security?

The pricing of Cisco Duo is quite reasonable compared to other products.

See all answers

What needs improvement with Duo Security?

One downside of Cisco Duo is the expense, as there are clients that can afford only the basic package, which does not...

See all answers

What is the better solution - Prisma Access or Zscaler Private Access?

We looked into Prisma Access before choosing Zscaler Private Access (ZPA). Palo Alto’s Prisma Access is a secure ac...

See all answers

What do you like most about Zscaler SASE?

The most valuable features of Zscaler Private Access are reliability, scalability, and availability.

See all answers

What needs improvement with Zscaler SASE?

The solution needs to improve a lot of aspects.

See all answers

Comparisons

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FortiSASE vs iboss

Compared 7% of the time

Akamai Secure Internet Access Enterprise vs iboss

Compared 2% of the time

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Compared 7% of the time

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Compared 7% of the time

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Compared 6% of the time

Yubico YubiKey vs Cisco Duo

Compared 4% of the time

UserLock vs Cisco Duo

Compared 3% of the time

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Cato SASE Cloud Platform vs Zscaler Zero Trust Exchange Platform

Compared 9% of the time

Prisma Access by Palo Alto Networks vs Zscaler Zero Trust Exchange Platform

Compared 5% of the time

FortiSASE vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

Check Point Harmony SASE (formerly Perimeter 81) vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

Microsoft Purview Data Loss Prevention vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

More Zscaler Zero Trust Exchange Platform Competitors

Product Reports

Buyer's Guide

iboss

January 2026

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Buyer's Guide

Cisco Duo

January 2026

Download Cisco Duo product report

Buyer's Guide

Zscaler Zero Trust Exchange Platform

January 2026

Zscaler Zero Trust Exchange Platform report

Download Zscaler Zero Trust Exchange Platform product report

Also Known As

iBoss Cloud Platform

Duo Security

Zscaler SASE, Zscaler DLP, Zscaler CASB, Zscaler CSPM, Zscaler Browser Isolation, Zscaler Posture Control

Overview

Iboss offers a comprehensive cloud-based security platform valued for its scalability and autonomous features, ensuring robust security with easy deployment and management capabilities.

Renowned for its robust security architecture, Iboss integrates seamlessly within diverse networks, delivering efficient granular filtering and advanced content categorization. Its single pane of glass console provides ease of management, allowing rapid scalability suitable for rapidly deploying environments. Operates in BYOD setups due to inline filtering without device installation. Integration with cloud-based applications enhances user control, and features like SASE, SSL inspection, and ChatGPT risk protection stand as highlights. Despite its strengths, users have pointed out areas for enhancement like direct navigation in reports, SSL decryption, and better cloud integration while having room to improve data loss prevention.

What are the most important features of Iboss?

Scalability: Supports rapid deployment across diverse networks.
SASE: A consolidated approach to secure access.
SSL Inspection: Ensures safe data transmission.
Granular Filtering: Detailed control over accessible content.
Single Pane Management: Unifies control through a centralized console.

What benefits should users consider in reviews?

Cost-effectiveness: Offers competitive pricing with robust features.
Autonomous Operation: Reduces management overhead.
Responsive Support: Provides assistance when needed.
Flexible Deployment: Available for both cloud and on-premises environments.

The usage of Iboss spans educational institutions, specifically K-12, to enforce internet policies, protect data, and support remote work environments. It provides web filtering and security frameworks to ensure safe browsing. Its platform-as-a-service model offers flexibility for both cloud-based and on-premises requirements, integrating seamlessly to deliver enhanced security features suitable for various deployment needs including zero trust, CASB, and network security for work-from-home setups.

iboss

Cisco Duo is a cloud-based identity security platform safeguarding critical resources for any user and device worldwide. Known for its ease of use, Duo offers seamless protection across multi-cloud, hybrid, and on-premises environments.

Cisco Duo is designed to secure access with identity-first protection and provides extensive visibility throughout an organization's identity ecosystem. Offering multi-factor authentication, Duo facilitates easy integration and management, allowing teams to protect data effectively on VPNs, applications, and networks. Its single-pane management improves security processes while enhancing trust, making it suitable for diverse IT infrastructures.

What are the key features of Cisco Duo?

Multi-factor Authentication: Strengthens user verification with multiple methods.
Push Notifications: Simplifies authentication with quick approvals.
Single Sign-On: Enhances convenience by allowing one set of credentials.
VPN Access: Secures remote connections with reliable authentication.
User Activity Visibility: Offers comprehensive insights into access patterns.

Which benefits and ROI should users consider?

Quick Deployment: Facilitates rapid integration within existing systems.
Effective Management: Streamlines IT operations with centralized control.
Regulatory Compliance: Aids in meeting industry standards for data protection.
Enhanced Trust: Strengthens security posture across networks.
User-friendly Approach: Simplifies authentication for non-technical users.

In industries like education and finance, Cisco Duo is widely employed to secure multi-factor authentication across platforms such as email, databases, and servers. Its integration capabilities with Microsoft 365, Active Directory, and VPNs like AnyConnect are instrumental in verifying user identities using mobile apps or OTPs, catering effectively to both remote and on-premise environments.

Cisco

Zscaler Zero Trust Exchange enhances security with seamless cloud-based connectivity and VPN-less operation, offering integration with multiple identity providers and advanced security features, suitable for remote work environments.

Zscaler Zero Trust Exchange provides secure, adaptive connectivity without traditional VPNs, allowing organizations to replace legacy systems and bolster remote work security. The platform offers cloud-based protection, single sign-on, dynamic URL categorization, and scalable solutions. While advanced security features like DLP and threat protection enhance data protection, users may face issues with speed, connectivity, and some customization options. Integration challenges, latency due to multi-tenant hosting, reporting delays, and licensing costs require consideration. It supports secure internet access and private application security, ensuring traffic control and data compliance.

What are the key features of Zscaler Zero Trust Exchange?

VPN-less Connectivity: Enables secure remote access without traditional VPNs.
Cloud-based Security: Offers scalable protection utilizing cloud infrastructure.
Single Sign-On: Integrates with multiple identity providers for streamlined access.
Dynamic URL Categorization: Provides real-time URL filtering to enhance security.
Advanced Threat Protection: Detects and mitigates sophisticated threats effectively.
Customizable Policies: Allows tailored security protocols to fit unique requirements.
Comprehensive DLP: Protects sensitive data through robust data loss prevention.
Integration Capabilities: Connects seamlessly with cloud services and applications.

What are the benefits of using Zscaler Zero Trust Exchange?

Enhanced Security: Delivers consistent protection regardless of user location.
Improved Compliance: Ensures adherence to data protection regulations.
Streamlined Access: Simplifies connectivity to private and cloud applications.
Scalability: Supports expanding organizational demands with cloud scalability.
Real-time Visibility: Provides instant insights into security incidents and network traffic.

Zscaler Zero Trust Exchange is deployed across industries to secure remote access and enforce zero trust principles. Organizations in finance, healthcare, and technology sectors utilize it for secure internet access and visibility into cloud applications, enhancing performance and compliance in dynamic environments.

Zscaler

Sample Customers

More than 4,000 global enterprises trust the iboss Cloud Platform to support their modern workforces, including a large number of Fortune 50 companies.

Information Not Available

Siemens, AutoNation, GE, NOV

Buyer's Guide

Cisco Duo vs. Zscaler Zero Trust Exchange Platform

December 2025

Free Report: Cisco Duo vs. Zscaler Zero Trust Exchange Platform

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