No more typing reviews! Try our Samantha, our new voice AI agent.

Microsoft Defender for Office 365 vs Symantec Advanced Threat Protection comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 1, 2024

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 Advanced Threat Protection (ATP)
2nd
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
62
Ranking in other categories
Email Archiving (1st), Email Security (2nd), Microsoft Security Suite (8th), Secure Email Gateway (SEG) (1st)
Symantec Advanced Threat Pr...
Ranking in Advanced Threat Protection (ATP)
22nd
Average Rating
7.8
Reviews Sentiment
7.1
Number of Reviews
16
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Advanced Threat Protection (ATP) category, the mindshare of Microsoft Defender for Office 365 is 6.7%, down from 14.9% compared to the previous year. The mindshare of Symantec Advanced Threat Protection is 2.2%, up from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Advanced Threat Protection (ATP) Mindshare Distribution
ProductMindshare (%)
Microsoft Defender for Office 3656.7%
Symantec Advanced Threat Protection2.2%
Other91.1%
Advanced Threat Protection (ATP)
 

Featured Reviews

Emeka Ndulu - PeerSpot reviewer
Cloud Solutions Architect at a tech services company with 201-500 employees
Improves threat visibility and response while reducing manual tasks and training users against phishing
I appreciate the attack simulation feature whereby I get to train users and educate them on how to identify phishing emails and spam emails, as well as the anti-spam protection. It gives me visibility into my threat environment and threat landscape to ensure that I am one step ahead of any likelihood of threats within my environment. I get to detect it and respond, so the threat intelligence is very effective. Microsoft security solutions save my time. It saves money because once I protect my environment, I don't lose money. It has decreased my detection time and my time to respond.
TapabrataSamanta - PeerSpot reviewer
Lead Architect at Zones
Reliable platform with effective integration capabilities
Our primary use case for the product is to provide advanced threat protection to our clients, primarily in the banking and financial sectors Symantec ATP has been beneficial in ensuring robust security for our clients. Its effectiveness in detecting and mitigating threats has improved customer…

Quotes from Members

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

Pros

"Safe attachments, safe links, policies, and the ability to protect from zero-day threats are the most valuable features."
"The most valuable feature of Microsoft Defender for Office 365 is data backups that we can provide through ticket requests."
"Some of the valuable features on the email side are anti-phishing, anti-malware, and Safe Links."
"I would say that 90% of the spam and phishing attack emails get blocked right off the bat."
"The DLP feature of Microsoft Defender for Office 365 is valuable, and we also use the DLP feature for email real-time detection."
"It gives me visibility into my threat environment and threat landscape to ensure that I am one step ahead of any likelihood of threats within my environment."
"The stability of Microsoft Defender for Office 365 is fantastic."
"At the moment we are satisfied with this product. It's a stable, scalable, and resilient solution for us."
"This is a good solution, and whatever our requirement is, all of the features are there."
"All of the solution's features are quite valuable for us, and we especially like the threat protection it provides."
"The most valuable feature is NetFlow threat protection."
"They manage to solve detection quite nicely. There is some rather elaborate detection compared to other providers."
"The great advantage in using this product is it creates multiple services."
"The incident management on the solution is very good. You get a lot of detailed information about an incident. You also get a lot of documentation in connection with the CVI or integration."
"Currently we have 800-plus nodes connected with this solution, without any issues."
"Endpoint to network is a good feature, it can protect the line."
 

Cons

"In one of the reports I can get the exact place where a vulnerable file resides. But for that, I need to explicitly go into the device and check. If they could include that file part in the report, without my having to go to the device itself, that would help."
"They can improve their security in a way where a customer can know if all their attachments are safe or not to open through a report."
"Microsoft Defender for Office 365 is not up to the mark in comparison with Wiz or Palo Alto."
"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."
"In some situations, it has not been able to pick impersonated emails having no attachments. Technical support definitely has a scope for improvement."
"It is not up to the mark in comparison with Wiz or Palo Alto."
"Microsoft Defender for Office 365 must improve the overall management style, including the GUI. It also needs to change the filters so that it is easy to whitelist and blacklist data."
"The cost of Security Copilot is up there right now, and I think it needs to come down for more people to adopt."
"Scalability could be better."
"Scalability could be better."
"It's a strange situation where the infrastructure of the consumer or customer is behind some kind of firewall and they have always used some kind of customized proxy. In this situation, the ATP has a very tough time to pass the information to the cloud and back. To fix, it requires a more elaborate and complex configuration for that particular case."
"The cloud platform needs to have improvement in terms of the user interface and the different capabilities it has available. It needs to match the other leading next-gen EDR products that are available in the market. That's the reason why we are stepping away from Symantec. Their cloud environment is just generally lacking in comparison to others."
"The security features need to be improved."
"Not ideal for advanced threat protection."
"The administration interface needs a lot of improvement. It should be UI based, and simple. They need to improve it. It's pretty much not that friendly compared to what we were using as Bitdefender before. It's okay but is improving, actually."
"Entire threat protection is not available for the advanced features."
 

Pricing and Cost Advice

"While Microsoft Defender for Office 365 necessitates pricier E3 or E5 subscriptions, the extensive functionality offered by these licenses across various Microsoft products justifies the investment."
"Microsoft Defender for Office 365 comes with Microsoft Windows. It is free with the operating system."
"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."
"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."
"The pricing is normal. Considering its popularity, it's not overpriced."
"Defender for 365 comes in various plans and licenses, along with other Microsoft security solutions. Purchasing this kind of package or security bundle gives good value for money, and that's what I recommend."
"It is much more expensive than using another solution because we have had to include some options and upgrade our license."
"The price is quite expensive."
"Symantec Advanced Threat Protection's pricing is comparable."
"Symantec Endpoint Protection has an average price."
"Pricing is good. It is nice to have a great product at a fair price."
"The pricing of this solution is inexpensive and affordable."
report
Use our free recommendation engine to learn which Advanced Threat Protection (ATP) solutions are best for your needs.
894,668 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
9%
Manufacturing Company
8%
Comms Service Provider
7%
Marketing Services Firm
11%
Financial Services Firm
10%
University
9%
Construction Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise12
Large Enterprise32
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise3
Large Enterprise13
 

Questions from the Community

What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
My experience with pricing, setup, and licensing is that it's actually quite reasonable even on the licensing side as a standalone product. It's very competitive compared to what competitors are ch...
What needs improvement with Microsoft Defender for Office 365?
I think Microsoft Defender for Office 365 can be improved by creating more educational pieces about not just looking for malware. We are seeing a lot more malware-less emails that Defender for Offi...
What is your primary use case for Microsoft Defender for Office 365?
My main use cases for Microsoft Defender for Office 365 include email hygiene.
What is your experience regarding pricing and costs for Symantec Advanced Threat Protection?
The price is quite expensive because a different entity has taken over the company.
What needs improvement with Symantec Advanced Threat Protection?
One area for improvement could be the pricing model. Future releases could further enhance integration capabilities with other platforms and simplify the licensing model to compete more with Micros...
What is your primary use case for Symantec Advanced Threat Protection?
Our primary use case for the product is to provide advanced threat protection to our clients, primarily in the banking and financial sectors.
 

Also Known As

MS Defender for Office 365
No data available
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
ECI
Find out what your peers are saying about Microsoft Defender for Office 365 vs. Symantec Advanced Threat Protection and other solutions. Updated: April 2026.
894,668 professionals have used our research since 2012.