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Microsoft Defender for Office 365 vs Microsoft Purview Information Protection comparison

 

Comparison Buyer's Guide

Executive Summary

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
7.4
Users found Microsoft Defender for Office 365 cost-effective, citing improved protection, time efficiency, and savings in security management.
Sentiment score
8.1
Microsoft Purview Information Protection enhances security, ensures compliance, reduces costs, and improves efficiency by automating data protection and governance.
It has also decreased our time to detection and response by about 15 to 20 percent.
Purview can do a quick scan, and it doesn't use human resources, so it gets time to do things that we need humans to focus on.
The cost of data loss and your data going to a competitor is potentially massive.
Customers have seen a return on investment through quicker issue detection and cost savings due to automation.
 

Customer Service

Sentiment score
6.9
Microsoft Defender for Office 365 offers knowledgeable support, though escalation delays and outdated documentation can affect resolution speed.
Sentiment score
5.3
Users report mixed customer service experiences with Microsoft Purview, noting slow response times and inadequate communication despite some improvements.
Customer service and support have been fantastic.
Sometimes, I get a fast and knowledgeable response, while other times, I've experienced delays and received no resolution.
It's hard to be an ambassador for a product when you know it will be hard to get support.
We generally receive good support from Microsoft for this solution.
 

Scalability Issues

Sentiment score
8.1
Microsoft Defender for Office 365 is scalable, adaptable, and integrates seamlessly, supporting medium to large enterprises efficiently.
Sentiment score
7.3
Microsoft Purview Information Protection is scalable for large workloads, but speed and policy update intervals could be improved.
It can be scaled across different departments organization-wide very quickly and easily.
It can handle large collections of data without issues.
Scalability can be improved by reducing these intervals.
 

Stability Issues

Sentiment score
7.8
Microsoft Defender for Office 365 is highly rated for stability, featuring strong performance and rare minor network issues.
Sentiment score
7.4
Purview remains reliable and stable, performing well at scale with minor issues and continuous upgrades through its SaaS model.
Once implemented, I haven't had issues with its consistency.
The solution is stable overall.
 

Room For Improvement

Microsoft Defender for Office 365 requires improvements in antivirus, scalability, integration, interface, threat intelligence, and licensing transparency.
Microsoft Purview Information Protection needs enhancements in integration, affordability, reporting, AI, feature reintroduction, and comprehensive data protection.
The main area for improvement is simplifying the implementation and rollout process.
I would reduce the cost.
Having a roadmap or updates about new releases would be helpful for demonstrating to clients.
Clarifying product features and use cases would help avoid such confusion.
Purview could better integrate with third-party tools.
 

Setup Cost

Microsoft Defender for Office 365 pricing varies; often costly for SMBs but competitive for enterprises, with added licensing complexities.
Microsoft Purview Information Protection offers competitive pricing, attractive bundling, and flexible licensing options, appealing to enterprise buyers.
Money-wise, it is a part of the Office 365 suite, making it slightly more expensive compared to Trend Micro.
I talked to people who had compared it to other products on the market, and they're spending five figures to get started.
Our focus is on helping customers maximize their software investment.
The pricing is not very high and is considered fine.
 

Valuable Features

Microsoft Defender for Office 365 provides comprehensive email protection with seamless Microsoft integration, enhancing threat management and data security.
Microsoft Purview excels in data protection with encryption, labeling, cross-platform security, and seamless integration, enhancing compliance and efficiency.
It ranks the threats and allows us to prioritize those hitting us the hardest, such as email threats.
Microsoft Defender for Office 365 is now part of a centralized tenant for my entire group.
Microsoft Copilot is an advantage because it's enterprise-grade AI.
It's paramount to have a single solution for information protection.
Regardless of the education, the employee might share the information anyway, so the AI shouldn't be the first point of failure. It should be a human making good decisions.
 

Categories and Ranking

Microsoft Defender for Offi...
Ranking in Microsoft Security Suite
11th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
48
Ranking in other categories
Email Security (1st), Advanced Threat Protection (ATP) (1st)
Microsoft Purview Informati...
Ranking in Microsoft Security Suite
14th
Average Rating
8.0
Reviews Sentiment
7.0
Number of Reviews
12
Ranking in other categories
Data Governance (4th), Data Privacy Management Software (1st)
 

Mindshare comparison

As of April 2025, in the Microsoft Security Suite category, the mindshare of Microsoft Defender for Office 365 is 2.3%, down from 2.9% compared to the previous year. The mindshare of Microsoft Purview Information Protection is 1.1%, down from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsoft Security Suite
 

Featured Reviews

Tolu Omolaja - PeerSpot reviewer
Great URL scanning and attachment scanning, but I would like more proactive threat analysis
The two main features that prove most beneficial for us are URL scanning and attachment scanning. URL scanning involves an automatic scan of links and emails. When a user clicks on a link within an email, the system promptly checks the link's safety. If the link is deemed safe, access is granted automatically. However, if it is flagged as unsafe, we receive feedback and notification to caution us about the potentially harmful link. At this point, we are presented with the option to proceed or return. I have personally witnessed the system identify a few unsafe links, making this the primary advantage of using the solution. The second crucial aspect is the scanning of attachments. When an email containing an attachment arrives, we receive a notification of the new email, along with information that the attachment is being scanned for threats. This additional layer of security provides peace of mind for our organization. While Microsoft Defender for Office 365 offers numerous features, these two stand out as particularly impressive and valuable to us.
Heidi Hasting - PeerSpot reviewer
Provides an essential audit trail that helps prevent accidental exposure of sensitive data, but the changing product names are confusing
One of the key features of Microsoft Purview Information Protection is the auto-classification functionalities, although I have found them to be less effective in complex scenarios. The policy toggle, demanding justification for downgrading labels, provides an essential audit trail that helps prevent accidental exposure of sensitive data. The security tools integrate well. I like that you can scan several data or informational assets, such as your SharePoint list, Teams, etc., and bring them into Purview as a central repository. Partnering with other products, like Sentinel, for logging capability and inventory provides a service across the board. It's essential that Purview automatically prevents highly sensitive corporate secrets and data from being ingested into generative AI models, but the reality is that AI is a tool. It's problematic if consumers rely on a tool to protect them because they must be educated first. Regardless of the education, the employee might share the information anyway, so the AI shouldn't be the first point of failure. It should be a human making good decisions.
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Financial Services Firm
19%
Computer Software Company
13%
Retailer
7%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Microsoft Defender for Office 365?
Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of various email campaigns, pinpointing where they emanate from, and identifying the indi...
What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
I don't have detailed specifics on pricing, setup cost, or licensing.
What needs improvement with Microsoft Defender for Office 365?
I am generally satisfied with how it currently is. If I could improve anything, I would reduce the cost.
What do you like most about Microsoft Purview Information Protection?
It ensures that sensitive data is automatically safeguarded, even for email attachments, regardless of the user or device.
What is your experience regarding pricing and costs for Microsoft Purview Information Protection?
The pricing is not very high and is considered fine. Microsoft offers different licensing options. AIP Plan 2 is used for critical users. The AIP is included in the business standard license for cl...
What needs improvement with Microsoft Purview Information Protection?
The most difficult part in the labeling solution is the lack of direct PDF support on Macs, whereas on Windows, a Purview agent can label PDFs. This should be improved to support PDF protection on ...
 

Also Known As

MS Defender for Office 365
Microsoft Information Protection
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Information Not Available
Find out what your peers are saying about Microsoft Defender for Office 365 vs. Microsoft Purview Information Protection and other solutions. Updated: March 2025.
847,646 professionals have used our research since 2012.