

Microsoft Defender for Office 365 and ThreatLocker Zero Trust Endpoint Protection Platform both compete in the cybersecurity category, focusing on protection against digital threats. Defender seems to have an edge in comprehensive email protection, while ThreatLocker holds strength in application control and zero-trust strategies.
Features: Microsoft Defender for Office 365 offers robust email protection through anti-phishing, anti-malware, and data loss prevention integrated within Office 365. It excels in real-time threat detection, especially zero-day threats, and provides critical visibility into organizational vulnerabilities. ThreatLocker emphasizes application allowlisting, ring-fencing, and zero-trust strategies, aimed at preventing unauthorized access and reducing cybersecurity risks. Its functionalities like storage control and selective elevation enhance endpoint protection and application management.
Room for Improvement: Microsoft Defender for Office 365 users highlight a need for enhanced multi-OS support, better threat visibility, and improved integration with external systems and applications. Its complex licensing model is noted as an area for refinement. ThreatLocker users suggest enhancements in the usability of their interface and integration with business processes, along with more proactive security measures and customer support responsiveness.
Ease of Deployment and Customer Service: Microsoft Defender for Office 365 benefits from seamless integration within the Microsoft ecosystem, accompanied by extensive documentation and community support, though it faces challenges with response times in technical support. ThreatLocker Zero Trust Endpoint Protection Platform offers straightforward deployment, with room to improve support visibility and request processing. While both products are well-regarded for customer service, ThreatLocker's proactive engagement is commendable.
Pricing and ROI: Microsoft Defender for Office 365 is often bundled with Office 365, complicating standalone pricing evaluation, but it offers good value through enhanced security and operational efficiencies despite perceived high expense compared to competitors. ThreatLocker presents competitive pricing with customizable models, appealing to businesses seeking effective endpoint security solutions. Both products are noted for delivering significant ROI, with Defender prioritizing ecosystem integration and ThreatLocker emphasizing cost-effective management.
It has also decreased our time to detection and response by about 15 to 20 percent.
Overall, cost of owning and operating our system goes down.
It's hard to quantify the return on investment we've seen from Microsoft Defender for Office 365.
If something were to happen without ThreatLocker, the cost would be huge, and thus, having it is definitely worth it.
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.
It keeps malware, Trojans, and ransomware at bay.
Over the past two years, there have been no critical problems.
we opened tickets, and they typically resolve them quickly.
With a subscription for Microsoft Defender for Office 365, it is an eight. Without it, it is a six.
They have been very responsive, helpful, and knowledgeable.
I would rate their customer support a ten out of ten.
Their support is world-class.
We have never faced scalability problems, and Microsoft manages it effectively.
Microsoft Defender for Office 365 scales transparently for us, as we grew from 1,000 users to 3,000 users, and we didn't notice much difference.
Microsoft Defender for Office 365 scales with the growing needs of my company well.
I started off with just the servers, and within a month and a half, I set up the entire company with ThreatLocker.
It seems to primarily operate on the endpoints rather than at a central location pushing out policies.
I would rate it a ten out of ten for scalability.
I would rate the stability of Microsoft Defender for Office 365 as 10 over 10 because it's highly available, it works, and it does the job it is meant to do.
I have not experienced any downtime, crashes, or performance issues because of Defender.
The solution is stable, as we have been using it for the past two years.
For five years, we have not had a problem.
Once deployed, it downloads the policies locally, so even if the computer doesn't have internet, it doesn't matter.
It has been very stable, reliable, and accessible.
The main area for improvement is simplifying the implementation and rollout process.
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS records like SPF, DKIM, and DMARC are not properly published.
There is a different console for different things; I just want one consolidated console.
Controlling the cloud environment, not just endpoints, is crucial.
This is problematic when immediate attention is needed.
Comprehensive 24-hour log monitoring is a valuable enhancement for both business and enterprise-level users.
We've likely saved 30% of costs.
Money-wise, it is a part of the Office 365 suite, making it slightly more expensive compared to Trend Micro.
Microsoft is quite affordable with a lot of features available for any size organization.
After conversations with other partners, it became clear we underpriced it initially, which caused most of our issues.
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.'
I had a really good deal at the time, and it continues to be cost-effective.
It ranks the threats and allows us to prioritize those hitting us the hardest, such as email threats.
It provides end-to-end visibility on email threats such as phishing, extending beyond Exchange Online Protection.
The value of the DLP feature is significant to us because we have internal data, sometimes sensitive, and the users may not always be aware of security and privacy, which might lead them to send out information mistakenly to external parties.
ThreatLocker Zero Trust Endpoint Protection Platform's ability to block access to unauthorized applications has been excellent.
It protects our customers.
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.
| Product | Market Share (%) |
|---|---|
| Microsoft Defender for Office 365 | 9.7% |
| ThreatLocker Zero Trust Endpoint Protection Platform | 2.7% |
| Other | 87.6% |

| Company Size | Count |
|---|---|
| Small Business | 23 |
| Midsize Enterprise | 10 |
| Large Enterprise | 31 |
| Company Size | Count |
|---|---|
| Small Business | 32 |
| Midsize Enterprise | 4 |
| Large Enterprise | 3 |
Microsoft Defender for Office 365 is a comprehensive security solution designed to protect organizations against advanced threats in their email, collaboration, and productivity environments. It combines the power of Microsoft's threat intelligence, machine learning, and behavioral analytics to provide real-time protection against phishing, malware, ransomware, and other malicious attacks.
With Microsoft Defender for Office 365, organizations can safeguard their email communication by detecting and blocking malicious links, attachments, and unsafe email content. It employs advanced anti-phishing capabilities to identify and prevent sophisticated phishing attacks that attempt to steal sensitive information or compromise user credentials.
This solution also offers robust protection against malware and ransomware. It leverages machine learning algorithms to analyze email attachments and URLs in real-time, identifying and blocking malicious content before it reaches users' inboxes. Additionally, it provides advanced threat-hunting capabilities, allowing security teams to proactively investigate and respond to potential threats.
Microsoft Defender for Office 365 goes beyond email protection and extends its security features to other collaboration tools like SharePoint, OneDrive, and Teams. It scans files and documents stored in these platforms, ensuring that they are free from malware and other malicious content. It also provides visibility into user activities, helping organizations detect and mitigate insider threats.
Furthermore, this solution offers rich reporting and analytics capabilities, providing organizations with insights into their security posture and threat landscape. It enables security administrators to monitor and manage security incidents, track trends, and take proactive measures to enhance their overall security posture.
ThreatLocker Zero Trust Endpoint Protection Platform empowers organizations with application control, selective elevation, and ring-fencing to enhance security and prevent unauthorized access.
ThreatLocker provides comprehensive security management using application allowlisting to ensure only approved software operates across servers and workstations. The platform's centralized management simplifies security processes by consolidating multiple tools, and its robust capabilities align with zero-trust strategies by actively blocking unauthorized applications and ensuring compliance. Users note intuitive features such as mobile access, helpful training resources, and responsive support, which effectively reduce operational costs and help desk inquiries. The managed service providers prefer ThreatLocker to maintain network integrity by preventing malicious scripts and unauthorized access attempts. However, users identify room for growth in training and support flexibility, the interface, and certain technical challenges like network saturation from policy updates.
What are the most important features?Organizations utilize ThreatLocker for application allowlisting, ensuring only authorized software operates to prevent unauthorized access efficiently. Deployed across servers and workstations, its features support zero-trust principles and are favored by managed service providers for application management and network integrity.
We monitor all Advanced Threat Protection (ATP) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.