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Mimecast Insider Risk Management and Data Protection vs Zscaler Zero Trust Exchange Platform comparison

Why PeerSpot?
 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 11, 2026

Review summaries and opinions

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

ROI

Sentiment score
6.6
Mimecast's solution improves security and efficiency, saving time, reducing data leaks, and automating manual tasks into workflows.
Sentiment score
7.3
Zscaler Zero Trust Exchange enhances ROI through cost savings, improved security, productivity, and reduced operational expenses and support issues.
Mimecast Insider Risk Management and Data Protection eases the workload through automation, through policies and rules that are pre-configured to handle complex tasks that would take hours and days for a team to initiate.
Senior Service Desk Engineer at a comms service provider with 201-500 employees
With Mimecast Insider Risk Management and Data Protection, our investigation time for high-risk incidents has been cut in half, and overall management now takes us less than four hours a week.
Security Managed Services Specialist at Accenture
There have been scenarios where we have stopped users from sharing data, and that data has been successfully protected from leaving the premises, adding tremendous value for us.
Security Engineer at Comcast
When I see that I am trying to cut costs, for example, even when replacing Prisma, we have managed to save about over half a million dollars a year.
Cybersecurity Senior Program Manager at Dayforce
In terms of time savings, since users no longer manually connect to the VPN, access became seamless, improving user productivity, especially for remote users.
Technical Team Lead - Content Security at Valuepoint Systems
We don't have to purchase many components such as load balancers and proxy servers that were necessary in traditional setups.
Lead Engineer at FIS Global
 

Customer Service

Sentiment score
8.3
Mimecast provides reliable, effective customer support with knowledgeable staff, useful resources, and multiple support channels, despite occasional delays.
Sentiment score
4.9
Zscaler's support is praised for knowledge and responsiveness but varies in resolution time and regional quality.
I would rate the customer support a perfect 10.
Iam Analyst at a renewables & environment company with 1,001-5,000 employees
I have never had any problems with the customer support, and they are very responsive.
Cyber Security Engineer at a computer software company with 51-200 employees
They resolve issues according to their established SLA.
technical specialist at a tech vendor with 10,001+ employees
The support engineers are technically knowledgeable, particularly for Zscaler Private Access related issues, providing clear guidance and documentation for troubleshooting.
Technical Team Lead - Content Security at Valuepoint Systems
Sometimes, support takes time since the solution has some bugs that need fixing.
architect at Tata Consultancy
They have provided the numbers and contact supports, and it is almost immediate.
Cybersecurity Senior Program Manager at Dayforce
 

Scalability Issues

Sentiment score
7.6
Mimecast efficiently scales with cloud-native architecture, offering customization, flexible deployment, and seamless data handling for growing organizations.
Sentiment score
7.6
Zscaler Zero Trust Exchange is scalable and cloud-native, facilitating easy, hardware-free user expansion with high performance and adaptability.
The tool effectively detected both malware and spam, ensuring that only a few emails categorized as malware reached user mailboxes.
Network Security Engineer at a tech services company with 1,001-5,000 employees
I would rate the scalability of Mimecast Insider Risk Management and Data Protection around 9.5, as it is highly scalable and widely used by many organizations, including large enterprises.
Iam Analyst at a renewables & environment company with 1,001-5,000 employees
As the organization grows, Mimecast scales its cloud resources to handle increased demand.
Cybersecurity analyst at Infosys
The only limitation I was mentioning is that it was unable to identify the sources of vulnerability, which they are going to embed by the mid of this year.
Cybersecurity Senior Program Manager at Dayforce
Zscaler Zero Trust Exchange Platform is highly scalable, primarily because it is built on a cloud-native, globally distributed architecture.
Technical Team Lead - Content Security at Valuepoint Systems
 

Stability Issues

Sentiment score
8.0
Mimecast Insider Risk Management is stable and reliable, with minimal issues, quick resolutions, and seamless updates in diverse environments.
Sentiment score
7.8
Zscaler’s platform is highly reliable and stable, with minor connectivity issues and occasional slight latency during data transfers.
Mimecast Insider Risk Management and Data Protection is stable in my experience.
Cyber Security Engineer at a computer software company with 51-200 employees
Mimecast Insider Risk Management and Data Protection is definitely stable without fail based on my experience.
Network Security Engineer at a tech services company with 1,001-5,000 employees
Zscaler Zero Trust Exchange Platform is very stable, especially in enterprise environments.
Technical Team Lead - Content Security at Valuepoint Systems
Zscaler Zero Trust Exchange Platform is very stable.
Cybersecurity Senior Program Manager at Dayforce
 

Room For Improvement

Mimecast could enhance reporting, integration, and analytics, improve UI performance, and support additional devices for better risk management.
Zscaler's platform needs latency and usability improvements, better multi-tenancy and support, clearer pricing, and enhanced SIEM integration.
If Mimecast could provide more information about how they store the data and whether the agents are local agents or cloud-hosted agents, that would be of great help for the organizations to consider its AI capabilities while adhering to the compliance needs of a particular organization.
Security Engineer at Comcast
Mimecast Insider Risk Management and Data Protection should incorporate features to detect if a URL is malicious or generated by AI, especially since many attackers use scripts to bypass mail gateways.
technical specialist at a tech vendor with 10,001+ employees
The policies are solid, they work effectively, the implementation time is not very long, integrations with SIEM are quite easy, and the Glassbreak account is something I have tested.
Network Security Engineer at a tech services company with 1,001-5,000 employees
It would be beneficial to have more granular centralized visibility, allowing for quick end-to-end tracing of a user request from authentication to application access without switching between multiple views.
Technical Team Lead - Content Security at Valuepoint Systems
Zscaler Zero Trust Exchange Platform probably needs to be more efficient because scanning takes a lot of time.
Cybersecurity Senior Program Manager at Dayforce
They might be able to identify if something is missing with Zscaler.
architect at Tata Consultancy
 

Setup Cost

Mimecast's pricing is reasonable with valuable support, scalable user licenses, and potential discounts for larger or long-term deployments.
Zscaler Zero Trust Exchange Platform has high subscription costs but offers ROI by reducing infrastructure needs and enhancing security.
The setup cost is a one-time investment that will stay with us forever.
Security Engineer at Comcast
After migrating, the cost is almost a 50% discount.
Infrastructure Contractor at a real estate/law firm with 11-50 employees
My experience with pricing, setup cost, and licensing indicates that pricing is always very expensive.
Senior Service Desk Engineer at a comms service provider with 201-500 employees
There is minimal setup cost since it is a cloud-delivered platform, eliminating the need to invest in additional hardware such as VPN gateways or maintain infrastructure.
Technical Team Lead - Content Security at Valuepoint Systems
Zscaler Zero Trust Exchange Platform is much, much cheaper when comparing price.
Cybersecurity Senior Program Manager at Dayforce
 

Valuable Features

Mimecast enhances email security with AI-driven analysis, integrates with top security tools, and streamlines compliance and risk management.
Zscaler Zero Trust Exchange offers scalable security with zero trust access, app segmentation, and flexible identity-based control for organizations.
Mimecast Insider Risk Management and Data Protection has positively impacted our organization as it has helped us identify a lot of phishing emails and stopped many unauthorized disclosures or accidental disclosures of information.
Security Engineer at Payatu
The second thing is that the alert getting triggered is very fast. There is no latency issue that we have observed.
Security Engineer at Comcast
If you want to secure your communication through email, you have to deploy Mimecast Insider Risk Management and Data Protection in your network infrastructure.
technical specialist at a tech vendor with 10,001+ employees
The solution is cloud-based with the latest inspection engines, which I find to be amazing.
architect at Tata Consultancy
We have excellent account management, smooth marketplace engagement, and processing in how my team or organization uses Zscaler Zero Trust Exchange Platform.
Manager, Software Development at a outsourcing company with 201-500 employees
Since we started using Zscaler Zero Trust Exchange Platform, it has auto-configuration, and wherever we have deployed the auto-configuration, we have not encountered any problem.
Cybersecurity Senior Program Manager at Dayforce
 

Categories and Ranking

Mimecast Insider Risk Manag...
Ranking in Data Loss Prevention (DLP)
4th
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
97
Ranking in other categories
No ranking in other categories
Zscaler Zero Trust Exchange...
Ranking in Data Loss Prevention (DLP)
6th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
67
Ranking in other categories
Cloud Access Security Brokers (CASB) (8th), Application Control (5th), ZTNA as a Service (1st), Secure Access Service Edge (SASE) (2nd), Remote Browser Isolation (RBI) (1st)
 

Mindshare comparison

As of September 2026, in the Data Loss Prevention (DLP) category, the mindshare of Mimecast Insider Risk Management and Data Protection is 2.7%, up from 2.0% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 4.0%, down from 5.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Data Loss Prevention (DLP) Mindshare Distribution
ProductMindshare (%)
Mimecast Insider Risk Management and Data Protection2.7%
Zscaler Zero Trust Exchange Platform4.0%
Other93.3%
Data Loss Prevention (DLP)
 

Featured Reviews

External Ganesh - PeerSpot reviewer
Security Engineer at Comcast
Insider threats have been detected faster and internal data exposure is now controlled
Regarding how Mimecast Insider Risk Management and Data Protection can be improved, sometimes the tool is slightly laggy, wherein it would take some time for us to fetch the related logs from the Mimecast portal, and that of course can be improved. There could also be a graph or a kind of a graph where, if the organization has a smaller number of employees, it is fine, but if it has a large number of employees and different departments, then in that case, Mimecast could give us an AI suggestion upon how to improvise the current security posture, how we stand and where we can go up to in terms of implementing or tweaking the policies. As the organization's size gets bigger, it would also be better if Mimecast could provide some solutions upon how to segregate the users into groups and what groups can have which policies. Those kinds of features can be added. Regarding Mimecast Insider Risk Management and Data Protection's AI capabilities, I think its governance and security could improve as I am not entirely sure how it works. It would be helpful if Mimecast could, as the AI capabilities are in place, maintain a strict governance policy upon the data that is being processed, especially for user personally identifiable information. As insider risk management sometimes also gets into the personal details of the user, organizations might be hesitant; even we are also hesitant to use the AI capabilities. If Mimecast could provide more information about how they store the data and whether the agents are local agents or cloud-hosted agents, that would be of great help for the organizations to consider its AI capabilities while adhering to the compliance needs of a particular organization.
Vibin Thomas - PeerSpot reviewer
Technical Team Lead - Content Security at Valuepoint Systems
Zero trust access has transformed remote connectivity and now simplifies secure app usage
Zscaler Zero Trust Exchange Platform, especially Zscaler Private Access, is very strong, though there are a few areas where improvements can be made. One challenge observed is around initial troubleshooting and visibility. While Zscaler Private Access provides logs, it can sometimes take time to pinpoint the exact cause of access issues, especially in complex environments with multiple policies and identity integration. Another area is the dependency on identity and connector health. Since Zscaler Private Access is heavily reliant on app connectors and identity providers, any issues with these components can impact user access, making proper monitoring critical. During the initial setup, policy configuration and application onboarding require careful planning, especially for larger environments with many applications. These challenges are manageable with proper design and monitoring. Overall, the platform delivers strong security and user experience. I would recommend a few improvements, especially around user interface, reporting, and troubleshooting experience. From a user interface perspective, while the platform is powerful, the policy configuration and navigation can feel complex, especially for new users. A more simplified and intuitive layout for policy mapping and application access would help reduce the learning curve. In terms of reporting, Zscaler Private Access provides logs, but having more built-in customizable dashboards and analytics would be very helpful. Better visibility into user access patterns, application performance, and real-time troubleshooting insights would improve operational efficiency. From a support and troubleshooting standpoint, it would be beneficial to have more granular centralized visibility, allowing for quick end-to-end tracing of a user request from authentication to application access without switching between multiple views. These improvements would make the platform even more efficient, especially for large-scale enterprise environments.
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914,262 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
16%
Outsourcing Company
12%
Construction Company
10%
Manufacturing Company
10%
Financial Services Firm
12%
Manufacturing Company
10%
Outsourcing Company
9%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise30
Large Enterprise44
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise12
Large Enterprise45
 

Questions from the Community

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I am unsure about Mimecast Insider Risk Management and Data Protection's pricing, setup costs, and licensing details. However, I know that licensing details are user-specific according to the licen...
What advice do you have for others considering Code42 Next-Gen DLP?
My advice for those looking at Mimecast Insider Risk Management and Data Protection is to compare your use case comprehensively. Do not just rely on reviews, as they offer communal insight; evaluat...
What needs improvement with Code42 Incydr?
A con to mention is that Mimecast Insider Risk Management and Data Protection, at times, may not capture everything. For instance, the time that Mimecast Insider Risk Management and Data Protection...
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 access service edge (SASE) designed to deliver network security in a cloud-deliver...
What is your experience regarding pricing and costs for Zscaler Cloud Protection?
This is an area where I have candid feedback from our organization regarding pricing, setup cost, and licensing for Zscaler Zero Trust Exchange Platform. Overall, I would assess the pricing as a si...
What needs improvement with Zscaler Cloud Protection?
After three years of working with Zscaler Zero Trust Exchange Platform, I do have genuine feedback on areas where I feel there is room for improvement. The initial configuration complexity is one a...
 

Also Known As

Mimecast Incydr, Code42 Next-Gen DLP, Code42 Next-Gen Data Loss Protection, Code42 Forensic File Search, Code42 Backup + Restore
Zscaler SASE, Zscaler DLP, Zscaler CASB, Zscaler CSPM, Zscaler Browser Isolation, Zscaler Posture Control
 

Overview

 

Sample Customers

Adobe, Okta, Samsung, Taylormade, Boston University, Lending Club, North Highland, Stanford University, Ping Identity, Qualcomm, Pandora.
Siemens, AutoNation, GE, NOV
Find out what your peers are saying about Mimecast Insider Risk Management and Data Protection vs. Zscaler Zero Trust Exchange Platform and other solutions. Updated: September 2026.
914,262 professionals have used our research since 2012.