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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 Microsoft Security Suite
10th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
53
Ranking in other categories
Email Archiving (1st), Email Security (1st), Advanced Threat Protection (ATP) (2nd), Secure Email Gateway (SEG) (1st)
Microsoft Purview Data Life...
Ranking in Microsoft Security Suite
34th
Average Rating
7.4
Reviews Sentiment
7.2
Number of Reviews
3
Ranking in other categories
Data Governance (28th)
 

Mindshare comparison

As of August 2025, in the Microsoft Security Suite category, the mindshare of Microsoft Defender for Office 365 is 2.9%, up from 2.4% compared to the previous year. The mindshare of Microsoft Purview Data Lifecycle Management is 0.3%, up from 0.2% 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.
Al Mcpherson - PeerSpot reviewer
Provides clear visibility into our entire information estate, reduces our time to action, and saves us time
The integration across Azure is straightforward. Microsoft Purview Data Lifecycle Management has been a game-changer for our data governance. We now have clear visibility into our entire information estate, allowing us to pinpoint data location and implement effective classification. Even though real-time compliance isn't a current need, Microsoft Purview Data Lifecycle Management offers that capability for future requirements. Purview Data Lifecycle Management has reduced our time to action – since we previously lacked such a tool, it's effectively cut our response time in half. Purview Data Lifecycle Management has saved us one working day per month.

Quotes from Members

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

Pros

"Microsoft Defender has a feature to protect each and every attachment. Even if it's an encrypted attachment, it will check for any potential threats."
"The good part is that you don't have to configure it, which is very convenient."
"Safe attachments, safe links, policies, and the ability to protect from zero-day threats are the most valuable features."
"The risk level notifications are most valuable. We get to know what kind of intrusion or attack is there, and we can fix a problem on time."
"Microsoft Defender for Office 365 is a stable solution."
"The ability to respond to threats if very important."
"It also gives the vulnerability status according to the versions you have selected. Let's say you have Google Chrome. It mentions the versions it has, and it updates. Within two hours of an update, it is reflected in the dashboard. That's really nice to have."
"Does a thorough job of examining email and URLs for malicious content."
"The automatic data labeling is compelling, and we are investigating its use."
"The UI is the most valuable feature."
"Purview's built-in functionality provides immediate access to reports, streamlining the entire process."
"The system is stable; I haven't encountered any worldwide stability issues unlike other office products."
 

Cons

"Microsoft needs to broaden its global support presence by establishing teams of subject-matter experts in all regions."
"The phishing and spam filters could use some improvement."
"The pre-sales cost calculations could be more transparent."
"This product's effectiveness could be improved, in terms of detecting unwanted spam or even malware between the emails, compared to other products."
"We noticed that from time to time, Microsoft's stability does have problems. Sometimes the service goes up and down. Sometimes they change without prior notice."
"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."
"Specifically, within Microsoft Defender for Office 365, I want it to improve the DLP capabilities."
"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 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."
"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."
"Microsoft's Purview Data Lifecycle Management preview features can be unreliable, hindering their usefulness."
 

Pricing and Cost Advice

"The solution could be better by simplifying the business model of their licensing. It was hard to figure out how to get the licensing done for the environment, initially."
"The license is expensive because the cost is based on the number of users."
"I know that the product is incredibly expensive."
"The product is very expensive."
"From the pricing point of view, like any other product in the market, there is scope for negotiation."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"The pricing has become expensive."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"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
16%
Financial Services Firm
8%
Manufacturing Company
8%
Comms Service Provider
6%
Computer Software Company
15%
Financial Services Firm
13%
Manufacturing Company
10%
Retailer
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
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?
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS records like SPF, DKIM, and DMARC are not properly published. It's essential to enhan...
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
 

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: July 2025.
865,384 professionals have used our research since 2012.