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Symantec Endpoint Security Complete vs ThreatLocker Zero Trust Endpoint Protection Platform comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 5, 2025

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
2.6
Symantec Endpoint Security Complete's ROI is rated highly by some, yet high costs make benefits assessment challenging for others.
Sentiment score
7.9
ThreatLocker Zero Trust boosts ROI by blocking threats, reducing risks, and enhancing security with seamless integration and quick adaptation.
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
The main return on investment is peace of mind, knowing that with ThreatLocker on any endpoint, it will almost always block all malicious code or exploits, even zero-day exploits.
Project Engineer at Lutz M&A, LLC
It keeps malware, Trojans, and ransomware at bay.
Technical Engineer at Cloud 1 Solutions
 

Customer Service

Sentiment score
3.3
Symantec Endpoint Security Complete receives mixed feedback, with praise for efficiency but concerns about response times and support consistency.
Sentiment score
7.7
ThreatLocker offers exceptional 24/7 customer service with fast issue resolution, highly rated by users for speed and expertise.
I don't know the current situation with Broadcom, however, it was good when I was involved.
Information Security Engineer at M.Tech
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
6.4
Symantec Endpoint Security Complete displays strong scalability, though opinions vary on license challenges and support in different environments.
Sentiment score
8.0
ThreatLocker scales efficiently, handling thousands of endpoints easily, with updates and flexible deployment supporting diverse organizational needs.
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
I would rate it a ten out of ten for scalability.
Project Engineer at Lutz M&A, LLC
 

Stability Issues

Sentiment score
8.0
Symantec Endpoint Security Complete is reliable and stable, though new releases may introduce bugs, earning high user satisfaction.
Sentiment score
7.4
ThreatLocker Zero Trust Platform offers stable performance, minimal downtime, quick issue resolution, and seamless integration with operating systems.
Mac OS upgrades would break them before new versions were available.
Lead of IT at a tech services company with 201-500 employees
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

Symantec Endpoint Security Complete requires enhancements in installation, interface, mobility, security features, support, scalability, pricing, and integration.
ThreatLocker could improve by enhancing training, UI, reporting, integration, and support to address approval and update challenges.
The mobile device management was not unified with the other endpoint management, creating structural issues.
Lead of IT at a tech services company with 201-500 employees
They could improve the user interface.
Information Security Engineer at M.Tech
Controlling the cloud environment, not just endpoints, is crucial.
COO at Panda Technology
This is problematic when immediate attention is needed.
Senior System Administrator at Molders Group Limited
Comprehensive 24-hour log monitoring is a valuable enhancement for both business and enterprise-level users.
IMS ENGINEER at a tech vendor with 1,001-5,000 employees
 

Setup Cost

Symantec Endpoint Security Complete pricing varies, seen as cost-effective by some but expensive due to features and complex renewals.
ThreatLocker offers a cost-effective Zero Trust solution with flexible pricing, appreciated for transparency and easy setup across clients.
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
I had a really good deal at the time, and it continues to be cost-effective.
Cyber Security Specialist at Bremmar Consulting
 

Valuable Features

Symantec Endpoint Security Complete delivers advanced protection and governance with features like threat hunting, sandboxing, and customizable performance.
ThreatLocker enhances security and reduces costs with application control, instant support, intuitive interface, and comprehensive training resources.
I have both the antivirus and EDR features constantly, allowing my team's customers to conduct detailed analyses of where attacks have occurred or if any malicious files are present, which devices or files have been targeted.
Information Security Engineer at M.Tech
Fortinet Endpoint Protection provides more features compared to other solutions.
Lead of IT at a tech services company with 201-500 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

Symantec Endpoint Security ...
Ranking in Endpoint Protection Platform (EPP)
31st
Average Rating
8.2
Reviews Sentiment
6.0
Number of Reviews
18
Ranking in other categories
No ranking in other categories
ThreatLocker Zero Trust End...
Ranking in Endpoint Protection Platform (EPP)
6th
Average Rating
9.2
Reviews Sentiment
7.4
Number of Reviews
40
Ranking in other categories
Network Access Control (NAC) (5th), Advanced Threat Protection (ATP) (7th), Application Control (1st), ZTNA (4th), Ransomware Protection (1st)
 

Mindshare comparison

As of January 2026, in the Endpoint Protection Platform (EPP) category, the mindshare of Symantec Endpoint Security Complete is 0.7%, up from 0.4% compared to the previous year. The mindshare of ThreatLocker Zero Trust Endpoint Protection Platform is 1.1%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Endpoint Protection Platform (EPP) Market Share Distribution
ProductMarket Share (%)
ThreatLocker Zero Trust Endpoint Protection Platform1.1%
Symantec Endpoint Security Complete0.7%
Other98.2%
Endpoint Protection Platform (EPP)
 

Featured Reviews

PetriRajama - PeerSpot reviewer
Lead of IT at a tech services company with 201-500 employees
Has provided strong security foundations but struggles with integration and ongoing compatibility issues
It had its problems. They were rebuilding it while having the old functionality and new functionality layered on top of each other. They were migrating the functionalities to the new solution, which caused significant problems. The mobile device management was not unified with the other endpoint management, creating structural issues.
CL
Supervisor, Client Security at a consultancy with 11-50 employees
World-class support and highly effective for application control and elevation
Their product is solid. I have a hard time complaining much about it because when we do find little things, they are usually interface-related or related to things that would be nice to have. Their idea portal, unlike so many other vendors we deal with, shows movement. At least four to eight features of ThreatLocker exist because I made a request in the last five years, and it became a feature of the actual product. When it comes to improvements, we moved the product as customers, and we got to move the product by making suggestions. They seem to be very reactive to it, so there is not a whole lot that they actively need to change right now. It is one of those situations where when we run into something that would be nice to have, it happens. They make it work.
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Use our free recommendation engine to learn which Endpoint Protection Platform (EPP) solutions are best for your needs.
879,422 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
14%
Manufacturing Company
11%
Financial Services Firm
11%
Real Estate/Law Firm
8%
Computer Software Company
25%
Retailer
8%
Manufacturing Company
8%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise5
Large Enterprise6
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise4
Large Enterprise3
 

Questions from the Community

What do you like most about Symantec Endpoint Security Complete?
The solution prevents any damage from viruses and provides risk mitigation for virus threats.
What is your experience regarding pricing and costs for Symantec Endpoint Security Complete?
Symantec Endpoint Security Full/Complete license is not expensive and advise using the full feature.
What needs improvement with Symantec Endpoint Security Complete?
It had its problems. They were rebuilding it while having the old functionality and new functionality layered on top of each other. They were migrating the functionalities to the new solution, whic...
What do you like most about ThreatLocker Allowlisting?
The interface is clean and well-organized, making it simple to navigate and find what we need.
What is your experience regarding pricing and costs for ThreatLocker Allowlisting?
Pricing, setup costs, and licensing have been pretty accessible and manageable. It was not too expensive to get started, especially at a small scale for a smaller MSP. It is very accessible, easy t...
What needs improvement with ThreatLocker Allowlisting?
Going with the theme of ThreatLocker Zero Trust Endpoint Protection Platform being a one-stop shop where they have just about everything, and they have a really good product stack as is. However, t...
 

Also Known As

No data available
Protect, Allowlisting, Network Control, Ringfencing
 

Overview

Find out what your peers are saying about Symantec Endpoint Security Complete vs. ThreatLocker Zero Trust Endpoint Protection Platform and other solutions. Updated: December 2025.
879,422 professionals have used our research since 2012.