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Proofpoint Email Protection vs ThreatLocker Zero Trust Platform comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 17, 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
5.0
Proofpoint Email Protection offers high ROI with reduced breaches and enhanced efficiency, significantly improving threat blocking and user satisfaction.
Sentiment score
6.2
ThreatLocker enhances security, reduces costs, boosts productivity, and facilitates growth by blocking unauthorized applications and preventing malware.
The ideal situation would be to have all these portals combined into one unified dashboard.
Information Security Architect at Loews Hotels
After Proofpoint Email Protection, phishing has been completely eliminated, so it is working very efficiently.
Security Engineer at News Corp
Instead of individually logging into five portals, we can log into one and they all connect as if we had logged into all of them.
SOC at a financial services firm with 201-500 employees
If something were to happen without ThreatLocker, the cost would be huge, and thus, having it is definitely worth it.
Tier 1 IT Engineer at a retailer with 11-50 employees
Based on what we use ThreatLocker Zero Trust Endpoint Protection Platform for with the same functionalities and packaging, it was around 13 or 14 hours.
Head Of Cyber Security at a outsourcing company with 201-500 employees
We have the MDR package as well, and just knowing someone is watching those endpoints at 3:00 a.m. is a lifesaver that you cannot put a dollar figure on.
System Administrator at Gwynedd Mercy University
 

Customer Service

Sentiment score
7.1
Proofpoint Email Protection's customer service is praised for its effectiveness, responsiveness, and strong technical support, despite occasional delays.
Sentiment score
7.8
ThreatLocker Zero Trust Platform excels in customer support with quick resolutions, expert assistance, and effective live chat services.
I am familiar with the granular policy control feature of Proofpoint Email Protection, and I find their support excellent for modifying those policies.
Senior Cybersecurity Specialist at a retailer with 10,001+ employees
Even the engineers have been helpful, and if we open a case, they get back to us right away.
Information Security Analyst at a government with 11-50 employees
We always contact them if we need support, whether it's for setting up features or technical support, which is very responsive.
System Administrator at Tutt Bryant Group
They have been very responsive, helpful, and knowledgeable.
Systems Security Analyst & Deputy Security Officer at a financial services firm with 201-500 employees
I would rate their customer support a ten out of ten.
Director, Managed Services at a consultancy with 11-50 employees
Their support is world-class.
Supervisor, Client Security at a consultancy with 11-50 employees
 

Scalability Issues

Sentiment score
7.4
Proofpoint Email Protection efficiently scales for businesses of all sizes, offering seamless integration and robust capacity handling in dynamic environments.
Sentiment score
7.8
ThreatLocker Zero Trust Platform seamlessly scales across organizations, managing thousands of endpoints, ensuring performance, and easy user integration.
Proofpoint is scalable for multi-site organizations with thousands of users.
Products and solutions director at ITVikings
The solution provides a graphical representation and dashboard view showing how many threats are getting blocked on a daily and monthly basis.
Information Technology Team Lead at a manufacturing company with 1,001-5,000 employees
Proofpoint Email Protection is considered to be highly scalable, designed for large enterprises, with a cloud-based architecture that offers an enormous number of options, including multi-organization support and high-volume email handling.
Senior Solution Delivery Lead Cybersecurity at International Olympic Committee – IOC
I started off with just the servers, and within a month and a half, I set up the entire company with ThreatLocker.
Technical Engineer at Cloud 1 Solutions
It seems to primarily operate on the endpoints rather than at a central location pushing out policies.
Systems Security Analyst & Deputy Security Officer at a financial services firm with 201-500 employees
ThreatLocker Zero Trust Endpoint Protection Platform scales very smoothly with our growing needs.
CEO at Mostro
 

Stability Issues

Sentiment score
8.3
Proofpoint Email Protection is praised for stability, reliability, and effective threat management, with some noting minor UI and server issues.
Sentiment score
7.9
Organizations find ThreatLocker Zero Trust Platform stable and reliable, with minor issues quickly resolved by support.
If Proofpoint Email Protection has an outage, we are either not receiving emails or not blocking the right threats.
Senior Security Engineer at Cloudflare
Regarding the stability and performance of Proofpoint Email Protection, I have not experienced any crashes, downtimes, or performance issues.
Cyber Security Engineer at a financial services firm with 10,001+ employees
Proofpoint Email Protection is very stable and reliable, as it remains accessible at all times without issues, ensuring that data is available in real time.
Principal Consultant at Infosys
For five years, we have not had a problem.
Supervisor, Client Security at a consultancy with 11-50 employees
Once deployed, it downloads the policies locally, so even if the computer doesn't have internet, it doesn't matter.
Information Cybersecurity Technology Specialist at Freez.it
It has been very stable, reliable, and accessible.
COO at Panda Technology
 

Room For Improvement

Proofpoint Email Protection needs a more intuitive interface, better detection, simplified integration, cost efficiency, and improved support.
Users seek improved training, integrations, transparency, UI, and communication in ThreatLocker Zero Trust Platform for enhanced usability and administration.
The older legacy user interface just took a little to work with, and the new unified interface, as it was able to do more and more of the functionality of the old one, the product just got easier and easier to use.
Sr Security Engineer at a comms service provider with 201-500 employees
In addition to the UI improvements, I would appreciate an increase in the speed of the tasks being processed on the pod.
Security Specialist at a leisure / travel company with 10,001+ employees
There are pros and cons to that, but I would suggest maintaining a good balance between security protection and operational impact.
Senior Security Engineer at Cloudflare
Controlling the cloud environment, not just endpoints, is crucial.
COO at Panda Technology
ThreatLocker Zero Trust Endpoint Protection Platform could improve by being a little more hands-off, perhaps by having a team inside ThreatLocker that does all the vetting of patches; having one person hired by ThreatLocker to check out patches means that a million other industries using ThreatLocker Zero Trust Endpoint Protection Platform do not have to vet the same patch, ultimately saving time and money around the world.
Technical Support Engineer at CMIT Solutions of Central Orlando
This feedback would help us understand what is learned in real-time, especially during a one-hour learning mode setup, ensuring we remain aware of potentially unnecessary learned items.
Server Administrator at Clay County Sheriff's Office
 

Setup Cost

Proofpoint Email Protection is costlier than competitors, but its superior security features justify the premium pricing for users.
ThreatLocker Zero Trust Platform provides flexible, scalable pricing with tiered plans and negotiable deals, ensuring cost-effectiveness and transparency.
Customers pay around $90,000 yearly for a 1,000-user organization, with the subscription license being the main expense, apart from implementation fees.
Products and solutions director at ITVikings
Given my other experience with other vendors, I think they are a bit on the high end and a bit on the pricey end for the email security functionality that we were using.
Sr Security Engineer at a comms service provider with 201-500 employees
Although it is a bit costly compared to Mimecast, Defender, and Cofense Vision, it is efficient and strong in security, so I do not mind the cost because I will not reduce my security risk.
Senior Solution Delivery Lead Cybersecurity at International Olympic Committee – IOC
After conversations with other partners, it became clear we underpriced it initially, which caused most of our issues.
Director, Managed Services at a consultancy with 11-50 employees
We are moving towards the Unified solution, where they basically bundle everything together, providing us better stability with the ability to bring in new product offerings without having to go back to the customer and say, 'This is going to cost you.'
Supervisor, Client Security at a consultancy with 11-50 employees
Money is saved because it is not costly, and I would suggest it for other companies.
Helpdesk Engineer at Computer Network Infrastructure (CNI) Consultants
 

Valuable Features

Proofpoint Email Protection offers advanced threat detection, spam and phishing protection, and seamless integration to enhance security and productivity.
ThreatLocker Zero Trust Platform excels in app control, security features, and support, enhancing IT efficiency and company security.
Without Proofpoint Email Protection, most of these emails would have come through, slipped through Exchange, gotten into the user's mailbox, and created a lot of trouble for the organization.
Cyber Security Engineer at IT Naturally
Proofpoint Email Protection has positively impacted my organization by ensuring we are not at risk of a breach through email.
Release lead at a financial services firm with 10,001+ employees
TAP alerts, where Proofpoint Email Protection scans emails and sends alerts, provide the ability to review suspicious emails and validate them in a sandbox environment.
Infrastructure Analyst at a consultancy with 51-200 employees
ThreatLocker Zero Trust Endpoint Protection Platform's ability to block access to unauthorized applications has been excellent.
Cyber Security Specialist at Bremmar Consulting
It protects our customers.
CTO at Zettabytes
The major benefit is fewer breaches overall, as nothing can be run without prior approval. This helps my company protect its data and secure itself effectively.
Tier 1 IT Engineer at a retailer with 11-50 employees
 

Categories and Ranking

Proofpoint Email Protection
Ranking in Advanced Threat Protection (ATP)
2nd
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
110
Ranking in other categories
Email Security (1st), Digital Risk Protection (3rd), Office 365 Protection (1st), Secure Email Gateway (SEG) (1st)
ThreatLocker Zero Trust Pla...
Ranking in Advanced Threat Protection (ATP)
4th
Average Rating
9.2
Reviews Sentiment
7.1
Number of Reviews
82
Ranking in other categories
Network Access Control (NAC) (4th), Endpoint Protection Platform (EPP) (5th), Application Control (1st), ZTNA as a Service (5th), ZTNA (5th), Ransomware Protection (1st)
 

Mindshare comparison

As of August 2026, in the Advanced Threat Protection (ATP) category, the mindshare of Proofpoint Email Protection is 3.4%, down from 11.3% compared to the previous year. The mindshare of ThreatLocker Zero Trust Platform is 2.7%, up from 2.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Advanced Threat Protection (ATP) Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection3.4%
ThreatLocker Zero Trust Platform2.7%
Other93.9%
Advanced Threat Protection (ATP)
 

Featured Reviews

Siva_Prasad - PeerSpot reviewer
Principal Consultant at Infosys
Email defenses have reduced phishing incidents and protect sensitive data across our enterprise
As things are evolving and threats develop in unpredictable ways, Proofpoint must adopt AI solutions and agentic solutions more aggressively and provide them to customers as part of service offerings. Inbuilt AI solutions would add more value and make Proofpoint a more premium choice for customers. With the help of AI solutions, agentic AI, and generative AI capabilities, the product would be more efficient than it currently is. Filtering false positives is highly challenging because it is impossible for humans to identify which emails are genuine and which are spam. Proofpoint should focus more on this area with back-end agents or other tools. Proofpoint should decide which emails are genuine and which are spam so it is not a challenge for end users. When receiving an email, end users should not have to determine whether to respond or not. Proofpoint should not release such spam emails and should strictly block such spam and spoof emails based on connection IPs. Currently, false positives occur in the product, and while this occurs in every product, it is an area where Proofpoint can focus on improving and reducing false positives. One email is enough for an end user to be deceived and lose money, so addressing this area is critical.
Santo Joy - PeerSpot reviewer
Head Of Cyber Security at a outsourcing company with 201-500 employees
Security controls have been strengthened with granular application, ringfencing, and access policies
The features of ThreatLocker Zero Trust Endpoint Protection Platform that I like the most are the Ringfencing, elevation control, storage control, and application whitelisting functionality. For examples of how these features benefit my company, we were looking for a solution across various vendors to actually implement application whitelisting controls. ThreatLocker's agent, which is very lightweight and does not use much CPU or RAM, helped us achieve that solution. Ringfencing was an add-on that ticked off a lot of Australian framework security controls, which is the reason we chose it. My impression of the allowlisting feature in terms of managing which software, scripts, and libraries run on my devices is that ThreatLocker's community page has a lot of information around this, which is very helpful. Not only that, the Cyber Hero support that ThreatLocker provides gives us insights and best practices, helping us achieve that solution and guiding us to the right platform. The impact of Ringfencing on controlling the behavior of approved applications has been a big winner for us because it is something that many other platforms do not provide as a functionality. Having that allowed us to identify what applications talk to each other, which is something that many other platforms do not do. The network control feature impacts my ability to manage network traffic across my endpoints and servers. We have not used this widely across all our partners, but wherever required, we use it. It has been an easy solution for those customers to get that control implemented. The elevation feature's role in facilitating just-in-time administrative access for approved applications shows that elevation control helps in many use cases involving remote control platforms, door usage, and security system platforms that require local admins. There are many solutions that provide this functionality, but the licensing cost seems to be expensive, and it also adds another solution into the mix. Rather than doing that, we try to use ThreatLocker Zero Trust Endpoint Protection Platform to achieve that control. Regarding the storage control feature, I have used it. The primary function is USB blocking, which is very widely adopted, and also just locking down and allowing certain users to access certain file locations helps us there. When it comes to enforcing policy-driven access over various storage devices, it depends on the business risk adapted by the companies that we support, but generally the use case is USB and external storage devices where companies know that is a risk, but they do not have appropriate solutions. There are EDR platforms that claim to do this, but ThreatLocker Zero Trust Endpoint Protection Platform does it at an advanced level. My assessment of the efficiency of the real-time threat intelligence and category controls employed by Web Control in blocking malicious and non-compliant sites leads me to think that Web Control is another functionality within ThreatLocker Zero Trust Endpoint Protection Platform that is an add-on on top of the current set. That is another solution that we use based on what is required for the company, but again, that is not widely adapted yet for our partners.
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Manufacturing Company
10%
Outsourcing Company
7%
Comms Service Provider
6%
Computer Software Company
11%
Financial Services Firm
11%
Manufacturing Company
11%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business29
Midsize Enterprise25
Large Enterprise61
By reviewers
Company SizeCount
Small Business56
Midsize Enterprise14
Large Enterprise13
 

Questions from the Community

What needs improvement with Proofpoint Email Protection?
The downside is I feel the vendor support is a little lacking and should be more responsive. The technical support is not up to the mark.
What is your primary use case for Proofpoint Email Protection?
I am leading this security domain, and my L1 and L2s have been using Proofpoint Email Protection and other modules of Proofpoint Email Protection for more than three years.We are currently working ...
What is your experience regarding pricing and costs for ThreatLocker Allowlisting?
My experience with pricing, setup cost, and licensing for ThreatLocker Zero Trust Platform is that the pricing is reasonable, the cost is fair, and the licensing is not too high.
What needs improvement with ThreatLocker Allowlisting?
I would suggest adding an AI-based policy recommendation feature to ThreatLocker Zero Trust Platform because we have to create every policy manually. If there were a custom AI that could help with ...
What is your primary use case for ThreatLocker Allowlisting?
Our main use case for ThreatLocker Zero Trust Platform is to provide endpoint security and to control each and every application end-to-end that can run on the company's devices, primarily to secur...
 

Also Known As

Proofpoint Enterprise Protection, Proofpoint Digital Protection
Protect, Allowlisting, Network Control, Ringfencing
 

Overview

 

Sample Customers

Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Information Not Available
Find out what your peers are saying about Proofpoint Email Protection vs. ThreatLocker Zero Trust Platform and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.