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Microsoft Defender for Office 365 vs Microsoft Purview Data Lifecycle Management 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:
 

Categories and Ranking

Microsoft Defender for Offi...
Ranking in Email Archiving
1st
Ranking in Microsoft Security Suite
10th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
53
Ranking in other categories
Email Security (1st), Advanced Threat Protection (ATP) (2nd), Secure Email Gateway (SEG) (1st)
Microsoft Purview Data Life...
Ranking in Email Archiving
11th
Ranking in Microsoft Security Suite
33rd
Average Rating
7.4
Reviews Sentiment
7.2
Number of Reviews
3
Ranking in other categories
Document Management Software (2nd), Data Governance (29th)
 

Mindshare comparison

As of October 2025, in the Email Archiving category, the mindshare of Microsoft Defender for Office 365 is 26.8%, up from 18.4% compared to the previous year. The mindshare of Microsoft Purview Data Lifecycle Management is 0.2%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Archiving Market Share Distribution
ProductMarket Share (%)
Microsoft Defender for Office 36526.8%
Microsoft Purview Data Lifecycle Management0.2%
Other73.0%
Email Archiving
 

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.
AnonyAdmin - PeerSpot reviewer
Provides data protection across platforms and connects to different devices
The rollout of Microsoft Purview Data Lifecycle Management is not yet complete. The goal of this implementation is to mitigate the risk of oversharing, particularly in anticipation of the broader adoption of Copilot. Purview's ability to connect to iOS, Mac, and Android devices, as well as data in other SaaS applications, is crucial. As a university with a bring-your-own-device policy, we cannot control the devices used by our diverse population of students and faculty. Therefore, an inclusive ecosystem that seamlessly integrates with various devices is essential, as we cannot enforce restrictions on specific devices or mandate particular technologies due to the open nature of our system. It is critical that Purview provides data protection across diverse cloud and platform environments, including AWS and GCP. Historically, our primary platform has been AWS, but we are increasingly expanding into Microsoft Azure. Therefore, I anticipate a future where we utilize both platforms extensively, making comprehensive data protection essential. Purview's design incorporates critical global regulations, ensuring compliance for university researchers and the institution itself with government and various regulatory requirements. Purview enhances visibility across our data estate. The new AI-powered data security features, especially the oversharing report, promise to be invaluable by providing insights into potentially overshared files and sites. This automation eliminates the need for custom scripts and manual data mining, previously necessary for identifying such issues, and ultimately saves significant development time. Purview saves time by eliminating the need for manual scripts, which can take days to run due to the volume of people and sites involved. Instead of running scripts multiple times or waiting hours for completion, Purview's built-in functionality provides immediate access to reports, streamlining the entire process.

Quotes from Members

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

Pros

"My experience deploying Microsoft Defender for Office 365 was seamless."
"The most valuable feature of Microsoft Defender for Office 365 is data backups that we can provide through ticket requests."
"Microsoft Defender for Office 365 helps people to work remotely. It is a secure solution. We don't need to use our company's computers or get VPN connections to the networks. I can control how they share screens and what they send to the devices. It keeps our organizations confidential and sensitive information safe."
"One of the best features of the tool is its capability to aggregate insights from different workloads, basically from the Office 365 and endpoints part."
"Overall, I would rate Microsoft Defender for Office 365 at a ten."
"Microsoft Defender for Office 365 is a stable solution."
"The deployment capability is a great feature."
"Defender for Office 365 has helped eliminate having to look at multiple dashboards and that is the aspect I like most about it. It is simpler, effective, and convenient. The users like the process efficiency."
"Purview's built-in functionality provides immediate access to reports, streamlining the entire process."
"The automatic data labeling is compelling, and we are investigating its use."
"The UI is the most valuable feature."
"The system is stable; I haven't encountered any worldwide stability issues unlike other office products."
 

Cons

"There is a different console for different things; I just want one consolidated console."
"In the areas of improvement for Microsoft Defender for Office 365, the console is the biggest challenge for me."
"Microsoft Defender for Office 365 could improve by giving customers information on techniques to prevent threats. For example, information about best practices on how to protect their own devices against hackers and scammers, such as educational information or training. This would help others have a better understanding of cyber security. Additionally, there can be more security features added."
"The certification training for Defender for 365 needs to be deeper and incorporate Sentinel. I took all the security courses except one, and Sentinel isn't included."
"One area for improvement is support, in terms of being able to reach them and, especially, technical support for configuration."
"This product's effectiveness could be improved, in terms of detecting unwanted spam or even malware between the emails, compared to other products."
"We are always looking for others tools to increase automation on tasks. There can be better integration with other solutions, such as PowerPoint and email."
"Microsoft needs to broaden its global support presence by establishing teams of subject-matter experts in all regions."
"Microsoft's Purview Data Lifecycle Management preview features can be unreliable, hindering their usefulness."
"Microsoft Purview Data Lifecycle Management can be challenging to implement due to its complexity and dense documentation, making it difficult to get started."
"Microsoft Purview Data Lifecycle Management can be challenging to implement due to its complexity and dense documentation, making it difficult to get started."
"The time it takes to scan is one issue; when we raise high-volume issues and tickets related to scanning failures, it relates to permission errors, which are technical challenges."
 

Pricing and Cost Advice

"For licensing, it's usually a yearly package for customers who are subscribed to Office 365, but they can also pay on a monthly basis."
"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."
"The license is expensive because the cost is based on the number of users."
"I know that the product is incredibly expensive."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"The pricing has become expensive."
"The product is very expensive."
"Defender is a little bit more expensive as compared to others. We are in the manufacturing environment. So, we don't have a high budget for all of our endpoint devices. Its cost is a major concern for us."
"The service operates on a pay-as-you-go basis, charging an extra one cent per field of metadata scanned in our data."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
8%
Manufacturing Company
8%
Comms Service Provider
6%
Computer Software Company
13%
Government
12%
Financial Services Firm
10%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise8
Large Enterprise27
No data available
 

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?
Microsoft is quite affordable with a lot of features available for any size organization.
What needs improvement with Microsoft Defender for Office 365?
I think that Microsoft Defender for Office 365 could be improved if it could use VirusTotal to compare the programs or anything that I download. VirusTotal helps to identify viruses, malware, troja...
What is your experience regarding pricing and costs for Microsoft Purview Data Lifecycle Management?
We opted for Purview Data Lifecycle Management due to its significant cost advantage over competitors. At a 95 percent price reduction, it was a clear winner. The service operates on a pay-as-you-g...
What needs improvement with Microsoft Purview Data Lifecycle Management?
One of the requirements is to have data leak policies and data access policies. This is very critical to enforce data governance standards, which relate to data classification, access control, data...
What is your primary use case for Microsoft Purview Data Lifecycle Management?
I am a customer and user of the tools. We are a big shop, and both the companies I work for are Microsoft Office 365 customers with over eighty thousand seats. Microsoft Purview Data Lifecycle Mana...
 

Also Known As

MS Defender for Office 365
Microsoft Information Governance, Microsoft Purview Records Management
 

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 Data Lifecycle Management and other solutions. Updated: September 2025.
869,202 professionals have used our research since 2012.