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Barracuda CloudGen Firewall vs Microsoft Defender for Office 365 comparison

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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:
 

ROI

Sentiment score
6.4
Barracuda CloudGen Firewall boosts security and efficiency with automation, free upgrades, centralized management, and improved connectivity.
Sentiment score
7.1
Microsoft Defender for Office 365 boosts efficiency, cuts phishing, integrates security, reduces tool costs, and mitigates risk.
The centralized management and automation features have reduced manual monitoring efforts, saving our IT team several hours per week.
Offensive Security Analyst at a outsourcing company with 201-500 employees
It has drastically reduced the amount of infections from cybersecurity threats and makes managing close to 50 clients or more for our engineers much easier, hence saving a lot of time and cost.
Dotnet Developer at Kohl's
Since using Barracuda CloudGen Firewall, the security incidents have decreased significantly by approximately 25 to 35 percent across our global network.
Security Lead at a tech vendor with 1,001-5,000 employees
It has also decreased our time to detection and response by about 15 to 20 percent.
Technology support manager at Alfred State College
Overall, cost of owning and operating our system goes down.
Designation Chief Consultant at Avtow
It's hard to quantify the return on investment we've seen from Microsoft Defender for Office 365.
Chief Architect at a tech vendor with 1,001-5,000 employees
 

Customer Service

Sentiment score
7.4
Barracuda CloudGen Firewall support is generally satisfactory, with varying quality and responsiveness, particularly between different support tiers.
Sentiment score
5.7
Microsoft Defender for Office 365 support is reliable but varies with subscription level and complexity of issues.
The support team is responsive and knowledgeable, assisting us promptly whenever we have faced configuration questions or technical issues.
Offensive Security Analyst at a outsourcing company with 201-500 employees
Barracuda's partner support is better than the majority, and it stands out as one of their strengths.
Product Manager - Cyber Security at M247 Ltd Miami
Whenever I faced any issues and searched the knowledge base, I found many solutions in place.
Security Practitioner at a tech vendor with 10,001+ employees
Over the past two years, there have been no critical problems.
Solution Consultant at BIM Group of Companies
we opened tickets, and they typically resolve them quickly.
Chief Architect at a tech vendor with 1,001-5,000 employees
With a subscription for Microsoft Defender for Office 365, it is an eight. Without it, it is a six.
Manager at a tech services company with 10,001+ employees
 

Scalability Issues

Sentiment score
7.8
Barracuda CloudGen Firewall offers scalable solutions for businesses, supporting seamless growth and flexible deployment across various environments.
Sentiment score
7.8
Microsoft Defender for Office 365 efficiently scales with cloud-native design, ensuring reliable performance and seamless integration for diverse organizations.
Its flexible licensing and hybrid deployment options allow it to adapt to evolving network requirements, ensuring continuous security and reliable operations.
Offensive Security Analyst at a outsourcing company with 201-500 employees
Regarding scalability and the ability to scale and expand with Barracuda CloudGen Firewall, there is no issue, so I would rate it a ten.
IT Director at a retailer with 51-200 employees
I can handle growth and larger workloads easily with Barracuda CloudGen Firewall.
Security Practitioner at a tech vendor with 10,001+ employees
We have never faced scalability problems, and Microsoft manages it effectively.
Solution Consultant at BIM Group of Companies
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.
Chief Architect at a tech vendor with 1,001-5,000 employees
Microsoft Defender for Office 365 scales with the growing needs of my company well.
Senior Client Director and Advisory Service Leader at Crossfuze
 

Stability Issues

Sentiment score
8.3
Barracuda CloudGen Firewall is praised for stability, reliability in critical environments, and improved connectivity with newer versions.
Sentiment score
7.8
Microsoft Defender for Office 365 offers consistently reliable performance with minimal downtime, high user ratings, and manageable minor issues.
Its robust infrastructure and real-time monitoring give us the confidence that our network remains secure and operational at all times.
Offensive Security Analyst at a outsourcing company with 201-500 employees
We have very few issues with Barracuda Firewall, even in the case of zero-day vulnerabilities.
Product Manager - Cyber Security at M247 Ltd Miami
In my experience, Barracuda CloudGen Firewall has been reliable and very high performing.
Software Engineer at Ernst & Young
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.
Cloud Solutions Architect at a tech services company with 201-500 employees
I have not experienced any downtime, crashes, or performance issues because of Defender.
Technology Associate at a financial services firm with 51-200 employees
The solution is stable, as we have been using it for the past two years.
Solution Consultant at BIM Group of Companies
 

Room For Improvement

Barracuda CloudGen Firewall requires interface improvements, better integration, performance enhancements, pricing refinement, and enhanced training resources for users.
Microsoft Defender for Office 365 needs improvements in usability, false positive reduction, phishing detection, scalability, and reporting capabilities.
Integration with AI would be helpful as modern attacks often utilize AI.
Director Of Technology at PT Exa Teknologi Indonesia
It would be beneficial to merge the existing application policy with the main policy into a single unified policy to improve manageability.
System Engineer for Network & Security at Projekt IP d.o.o.
AI can help us enhance our cybersecurity posture, but at the same time, it can be a nightmare that brings attackers. We need to use caution while enabling any AI-driven features.
Security Practitioner at a tech vendor with 10,001+ employees
The main area for improvement is simplifying the implementation and rollout process.
Infrastructure and Security Lead at Vedanta
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS records like SPF, DKIM, and DMARC are not properly published.
Solution Consultant at BIM Group of Companies
There is a different console for different things; I just want one consolidated console.
Senior Director, Security Architecture & Engineering at a leisure / travel company with 10,001+ employees
 

Setup Cost

Barracuda CloudGen Firewall offers competitive pricing with flexible subscriptions, free upgrades, and cost-effective features appealing to enterprises.
Microsoft Defender for Office 365 is cost-effective with E5, costly standalone, requiring careful planning for subscription-based licensing.
Our experience with Barracuda CloudGen Firewall pricing and licensing has been reasonable and transparent.
Offensive Security Analyst at a outsourcing company with 201-500 employees
The license price of Barracuda CloudGen Firewall is lower than others, and maintenance or support is included.
Director Of Technology at PT Exa Teknologi Indonesia
It is neither the cheapest nor the most expensive option available.
System Engineer for Network & Security at Projekt IP d.o.o.
We've likely saved 30% of costs.
Designation Chief Consultant at Avtow
Money-wise, it is a part of the Office 365 suite, making it slightly more expensive compared to Trend Micro.
Infrastructure and Security Lead at Vedanta
Microsoft is quite affordable with a lot of features available for any size organization.
Solution Consultant at BIM Group of Companies
 

Valuable Features

Barracuda CloudGen Firewall offers centralized control, SD-WAN, advanced protection, scalability, cost-effectiveness, and user-friendly design for efficient security.
Microsoft Defender for Office 365 enhances security with AI-driven phishing detection and robust protection across Microsoft 365 services.
This integration helps secure our data and applications from attackers trying to gain access and detect malicious activity.
Product Manager - Cyber Security at M247 Ltd Miami
The real-time monitoring helps us quickly identify unusual traffic patterns and potential threats, allowing us to respond immediately and maintain secure and uninterrupted network operations.
Offensive Security Analyst at a outsourcing company with 201-500 employees
Barracuda CloudGen Firewall has positively impacted my organization by increasing the level of network protection against threats from twenty percent to forty-five percent.
Software Engineer at Ernst & Young
It ranks the threats and allows us to prioritize those hitting us the hardest, such as email threats.
Technology support manager at Alfred State College
It provides end-to-end visibility on email threats such as phishing, extending beyond Exchange Online Protection.
Solution Consultant at BIM Group of Companies
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.
Chief Architect at a tech vendor with 1,001-5,000 employees
 

Categories and Ranking

Barracuda CloudGen Firewall
Ranking in Advanced Threat Protection (ATP)
19th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
47
Ranking in other categories
Firewalls (21st), Software Defined WAN (SD-WAN) Solutions (9th), IoT Security (6th), WAN Edge (10th)
Microsoft Defender for Offi...
Ranking in Advanced Threat Protection (ATP)
3rd
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
61
Ranking in other categories
Email Archiving (2nd), Email Security (2nd), Microsoft Security Suite (9th), Secure Email Gateway (SEG) (2nd)
 

Mindshare comparison

As of October 2026, in the Advanced Threat Protection (ATP) category, the mindshare of Barracuda CloudGen Firewall is 2.2%, up from 0.8% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 6.0%, down from 13.1% 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 3656.0%
Barracuda CloudGen Firewall2.2%
Other91.8%
Advanced Threat Protection (ATP)
 

Featured Reviews

Jennifer  Bernice - PeerSpot reviewer
Dotnet Developer at Kohl's
Centralized firewall management has saved time and improved network security across locations
Barracuda CloudGen Firewall could be improved as it has a very high learning curve. It is definitely not a one and done firewall, as a one and done firewall requires a lot of dedicated time to get the machine running the way you want. To improve Barracuda CloudGen Firewall, there should be a lot of tutorials and videos online to help new users. Multiple ways to configure for the same service or feature takes time to determine your customized build. In addition to previous points, the interface can sometimes be clunky when trying to determine how it is organized or arranged.
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.
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915,325 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
13%
Outsourcing Company
12%
Manufacturing Company
11%
Construction Company
9%
Computer Software Company
11%
Manufacturing Company
10%
Financial Services Firm
8%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise10
Large Enterprise13
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise11
Large Enterprise32
 

Questions from the Community

What is your experience regarding pricing and costs for Barracuda CloudGen Firewall?
Although I am not directly involved in that particular segment, from what I understood from the pricing information, it is a very cost-effective solution compared with other well-known firewall ven...
What needs improvement with Barracuda CloudGen Firewall?
When I consider what I dislike about Barracuda CloudGen Firewall, there are a lot of competitors in the market. Next-gen firewalls offer a lot of capabilities. From a capability standpoint, competi...
What is your primary use case for Barracuda CloudGen Firewall?
I use Barracuda CloudGen Firewall for multiple functionalities. One function is an email security gateway. It also acts for network security protection, network security and threat protection, whic...
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.
 

Also Known As

Barracuda NextGen Firewall, Barracuda CloudGen Firewalls
MS Defender for Office 365
 

Overview

 

Sample Customers

ARZ, Bauer, CBCX Technologies, Diamant-groep, Eissmann Group Automotive, European Youth Olympics, Exalo Drilling, FineLine Technologies, Geocell, Grimaldi, Infront Sports & Media, Odlo, Schenker Deutschland AG, Tilak, Verbandsgeneinde Zell, Conservas El Cidacos S.A., Institute for Emergency Medicine and Medicine Management, Erwin Muller GmbH, Info-Tech: NGF is Champion, Schoellerbank, IZB Informatik-Zentrum, RHI AG, Berglandmilch, Antenne Bayern, Sanochemia
Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Find out what your peers are saying about Barracuda CloudGen Firewall vs. Microsoft Defender for Office 365 and other solutions. Updated: September 2026.
915,325 professionals have used our research since 2012.