# Compare Avast Premium Business Security vs Microsoft Defender for Office 365 2026 | Capterra > Unsure of what to choose? Check Capterra to compare Avast Premium Business Security and Microsoft Defender for Office 365 based on pricing, features, product details, and verified reviews. Source: https://www.capterra.com/compare/216277-219685/Avast-Business-Antivirus-Pro-vs-Microsoft-Defender-for-Office-365 --- # Avast Premium Business Security vs Microsoft Defender for Office 365 Features and Cost Comparison Last updated June 24th, 2026 Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team.[Learn more](https://www.capterra.com/our-story/) Your comparison: Avast Premium Business SecurityMicrosoft Defender for Office 3652/4 selected [Avast Premium Business Security](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/)[4.7 (43)](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/reviews/) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.6 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) [## Avast Premium Business Security](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/)[4.7 (43)](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/reviews/) Starting Price $46.99/year Value-for-Money 4.4 Functionality 4.5 Ease of Use 4.7 Customer Service 4.4 Reviews Sentiment Based on [43 reviews](#user-reviews) Positive 41 Neutral 1 Negative 1 [## Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.6 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) Starting Price Contact vendor Value-for-Money 4.5 Functionality 4.5 Ease of Use 4.5 Customer Service 4.3 Reviews Sentiment Based on [240 reviews](#user-reviews) Positive 226 Neutral 8 Negative 6 ## Not a match? Find software alternatives tailored to your priorities. These software suggestions are similar to those you’re currently comparing. Highest Rated ### Libraesva Email Security 4.9 (50) * * * Starting Price £5.00 Flat Rate,Per Year Free Trial Free Version * * * User rating 100% of reviewers rated it above 4 stars * * * ### Trustifi 5.0 (20) * * * Starting Price $6.00 Flat Rate,Per Month Free Trial Free Version * * * User rating 100% of reviewers rated it above 4 stars * * * ### Darktrace 4.6 (21) * * * Starting Price Contact vendor for pricing Free Trial Free Version * * * User rating 100% of reviewers rated it above 4 stars * * * ### Guardio 4.4 (48) * * * Starting Price $14.99 Per User,Per Month Free Trial Free Version * * * User rating 88% of reviewers rated it above 4 stars * * * ## Send this comparison chart to my inbox ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox. ## Summary * * * Features in Email Security Software 9 / 32 Only Avast Premium Business Security - Activity Dashboard - Anomaly/Malware Detection Best performer 13 / 32 Only Microsoft Defender for Office 365 - Alerts/Escalation - Email Filtering - Phishing Protection User satisfaction User satisfaction 4.7 User reviews[43](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/reviews/) Ease of use 4.7 Functionality 4.5 Value for money 4.4 Customer support 4.4 User satisfaction 4.6 User reviews[240](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) Ease of use 4.5 Functionality 4.5 Value for money 4.5 Customer support 4.3 Price starts from Price starts from $46.99Per User, Per Year - Free version - Free trial Price starts from \-- - Free version - Free trial Best for Best for Small businesses Best for DevOps and Security Operations (SecOps) teams Security engineering teams IT teams CISOs and CTOs Red, Blue, and Purple Teams CSIRT & forensic team Microsoft 365 administrators ## User reviews Pros & cons TB Tonia B. Director of IT > "It is very low cost compared to competitors, it does offer the basic protection." [See full review](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/#Capterra___4978988) KC Karen C. CEO > "Sometimes the value of the software is a little expensive for those who don't have a lot of money." [See full review](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/#Capterra___4678473) VR Verified Reviewer Electric Engineer > "Avast is one of the best antiviruses that has provided many tools to monitor the system, improve performance, and secure browsing services, all of these..." [See full review](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/#Capterra___3296387) PT Pamela T. Administrative and General Manager > "I've always found those offerings to be out of line in regards to price and much more difficult to use." [See full review](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/#Capterra___2711659) [View Reviews](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/reviews/) Swetha C. Technical Program Mananger > "The platform integrates well with the Microsoft ecosystem and helps strengthen an organization's overall..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7159491) Gerald W. President > "I use Malwarebytes as well and that gives me a lot of false positives which can be a real nuisance." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6663379) MC Michelle C. CEO > "Defender has useful features, but the setup, alerts, and reports could be improved so that everyday users can..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7173676) MC Michelle C. CEO > "The learning curve can be frustrating." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7173676) Swetha C. Technical Program Mananger > "Microsoft Defender for Office 365 provides strong protection against phishing attacks, malware, and suspicious..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7159491) Gerald W. President > "I haven't been able to find any way to contact direct customer support with a real person." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6663379) NY Natalie Y. Office Assistant > "The thing I like most is it filters all the spam emails very well." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7109069) Gerald W. President > "A few years back I had some false positives, but not for a long time." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6663379) VR Verified Reviewer Marketing Specialist > "Easy to set up and integrate across laptops, computers, and phones." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7141775) Gerald W. President > "The instructions are not very clear." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6663379) BL Brooke L. Student > "The setup, email and scan is very easily accessible." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7172111) MM Moaz M. vet > "The only downside to Microsoft Defender for Office 365 is that it can be a bit expensive." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4968617) HG Harley G. Sr. IT Technician > "We use it for all of our clients, and once we learned how to set it up correctly it worked a treat." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6864177) NK Njenga K. Dj > "Pushing campaign function is quit slow and the major problem i have with it is that it cannot allow random..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094) SH Shari H. Independent Contractor > "I also like using the other Microsoft suites as well, such as publisher OneNote or any other new product that..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6846423) OM Owakiabul M. Cloud consultant > "Management of the security portal little bit confusing for new person" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6178847) AK Ajaykumar K. Specialist > "Microsoft defender is used to protect our data and secure our organization resources" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6653894) NZ Nina Z. owner > "With regards to the most recent dangers and malware, it isn't the most refreshed antivirus programming on the..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3762100) NY Natalie Y. Office Assistant > "The set up is very easy and self explanatory." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7109069) NK Njenga K. Dj > "What i least like the most about is learning curve of investigation indicators and pushing campaign operations." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094) BL Brooke L. Student > "Customer support is fast and efficient." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7172111) AY Abdelrahman Y. student > "Lacks integrated dashboard for all devices using Windows Defender. " [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133) Michelle F. Owner > "Easy to implement into computer." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7133779) NK Njenga K. Dj > "Learning curve of investigation indicators one feels like your just going through the same stuff and always..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094) AY Abdelrahman Y. student > "We have been able to patch out-of-date software, fix zero-day vulnerabilities, and remove risky software from..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133) AA Alhassan A. Research Coordinator > "Scanning local drives can be painfully slow especially for huge file counts, even if the size of the scanned..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2946518) SL Sarah L. Software Tester > "I love overseeing the product work for me." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6659504) AY Abdelrahman Y. student > "No accountability if the computer is infected by malware." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133) VR Verified Reviewer Accountant > "Due to the nature of our organization, it helps to secure our emails from phishing and spam. Although it is not..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4000056) Suhailah S. Administrative Assistant > "It will slowing down my internet connection every-time it is updating and affecting me when i am using the..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2944791) TA Taha A. front-end developer > "Even if this attachment is encrypted, it will provide excellent protection" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4982392) AA Ali A. Project Engineer > "sometimes it gets unreliable and take some time to process" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4536111) SH Shari H. Independent Contractor > "My overall experience with Microsoft office 365 is a great experience." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6846423) KB Krystal B. Librarian > "No matter how many times I flag emails that I receive from listservs as being ones that should not be..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3408055) AS Alisha S. Editor > "Overall, a great product that runs automatically and smoothly." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6818795) VR Verified Reviewer IT Solutions Architect > "Everything else is weaker than its counterparts and not as robust." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3935496) MM Moaz M. vet > "I have been using Microsoft Defender for Office 365 for several years and have been very impressed with its..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4968617) AM Agala M. Nutritionist > "I find the Microsoft defender for office 365 too basic and can therefore not prevent advanced issues." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2944938) AY Abdelrahman Y. student > "We can now utilize KQL to build custom detection alarms thanks to custom alerts." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133) FB Fizza B. Freelancer > "It provides poor protection on non-Microsoft-type files." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2952442) AW Awad W. design > "An easy-to-use program that will help you a lot and is indispensable in all practical and scientific fields" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___5007408) JB Jacob B. Manager > "Managing the settings can sometimes be a bit cumbersome. " [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2982192) MMR Md Mohiminur R. Manager > "Microsoft Defender for Office 365 is working superb for detecting and blocking the phishing attacks." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4818374) WR Wilson R. Computer Science > "The only problem was the number of notifications received as it gets to a point where it is annoying to receive..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2869559) AS Amr S. DIRECTOR > "it is a good for writing and make plans. " [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4973075) Joe A. IT Director > "The web interface can be frustrating slow at times." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3197791) NK Njenga K. Dj > "What i like the most about the product are,custom alerts and vulnerability assessment." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094) YK Yvonne K. Administrative Assistant > "I have not found anything that I don't like about it. If there is something more I need besides defender, my..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2969257) VR Verified Reviewer Accountant > "This is a fantastic tool from Microsoft that gives office 365 a variety of functions and protection." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4000056) SN Siyanda N. owner > "It impedes all known dangers right away and sends cautions to follow up." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3374792) ME Marco E. Tax Consulty > "WWhen using Windows Defender I got the best responses regarding threat detection, confirming that it is a tool..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3081154) VK Vincent K. Freelancer > "Like all Microsoft products, Microsoft defender has its eccentricities. When it comes to the latest threats and..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2790303) MH Mohamed H. Bioinformatician > "It's also customizable allowing the user to select features from different categories allowing full control of..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2958912) FS Felicia S. Freelancer > "If I had to nitpick and find one thing about the software that I don't particularly like about Microsoft..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2814289) MS Mohamed S. teacher > "The idea of ​​quick and perfect office work makes it very easy for me and organizes my work on an ongoing basis" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4156162) Gideon M. project assistant > "Was a bit slow during installation." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3401145) ZK Zee K. Sales Manager > "Microsoft Defender is always there to make you feel sure when opening emails and files to put you at..." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4497679) GS Gary S. Data Analyst > "The interface was confusing at first look." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3612825) Abhishek G. Intern > "The feature of automatically providing the password to new emails is really amazing." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4690587) Juan Ramón F. consultant > "Its virus scans are the worst, it consumes a lot of RAM and gives very low results" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2836849) MS Mohamed S. teacher > "The program is very genius and makes it easier for my employees to work in an organized mannerthank you" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4156162) AZ Austin Z. Creator > "I don't like how it would mark links that I trust, and programs I trust, as a virus." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2873394) NZ Nina Z. owner > "Safeguard gives a strong AV and firewall arrangement which is not difficult to convey to a huge endeavor." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3762100) MR MD R. CEO > "Accessing documents through chrome web browser is slow ." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2834437) AN Ahmed N. head > "easy to use not expensive fast very useful" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___5027258) JAO José Alejandro O. Technician > "It is not the best online protection software and it stays a little behind from other specialized software." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2916413) MA Mariam A. .... > "very easy in using, very useful and accurate" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4960787) AGE Arie Gerhardus E. Owner > "We need a different permit, and we don't have a clue how to get the permit that is required." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2930402) AK Ashraf K. Production manager > "It's easy to use, and helpful 👌 and secure" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4974387) Uğur Y. Sales and Application Specialist > "It still needs improvement for virus attacks." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2879660) AK Ashraf K. Production manager > "Helpful, secure" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4974387) KB Krystal B. Librarian > "What a waste." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3408055) SG Samir G. Teacher > "It is easy and very helpful to me in my work" [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4978705) Abrar K. Survey Programmer > "Deployment is expensive and we face issues sometimes while deploying." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2940467) AY Abdelrahman Y. student > "These are ideal since we can be notified as soon as anything happens that we want to know about." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133) RR Ramamohana R. Manager > "In between notifications are little disturbing when working seriously." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2878638) MS Mohamed S. Senior HR talent acquisition > "Microsoft Office is one of the most important programs that are currently available." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4039915) RR Ramamohana R. Manager > "System is becoming little slow I feel after installing the software. " [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2878638) NK Njenga K. Dj > "The products have help in big side of investigation big time." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094) GS GENES S. self employed > "It's very strict around the uninstallation of the misma, it's impossible." [See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2909517) [View Reviews](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) ## User interface [Avast Premium Business Security](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/) 4.65 (43) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/) 4.56 (240) ### Features Avast Premium Business Security 9/32 - Activity Dashboard - AI Copilot - AI/Machine Learning - Alerts/Escalation - Anomaly/Malware Detection - API - Audit Trail - Data Leak Prevention - Domain Check - Email Attachment Protection - Email Filtering - Email Management - Encryption - For MSPs - Fraud Detection - Generative AI - Phishing Protection - Policy Management - Real-Time Monitoring - Reporting/Analytics - Scheduled/Automated Reports - Security Auditing - Spam Analysis - Spam Blocker - Spam Quarantine - SURLB/URIBL Filtering - Third-Party Integrations - Threat Protection - Threat Response - Two-Factor Authentication - Vulnerability Scanning - Whitelisting/Blacklisting [See all features](https://www.capterra.com/p/216277/Avast-Business-Antivirus-Pro/#features) Microsoft Defender for Office 365 Top features 13/32 - Activity Dashboard - AI Copilot - AI/Machine Learning - Alerts/Escalation - Anomaly/Malware Detection - API - Audit Trail - Data Leak Prevention - Domain Check - Email Attachment Protection - Email Filtering - Email Management - Encryption - For MSPs - Fraud Detection - Generative AI - Phishing Protection - Policy Management - Real-Time Monitoring - Reporting/Analytics - Scheduled/Automated Reports - Security Auditing - Spam Analysis - Spam Blocker - Spam Quarantine - SURLB/URIBL Filtering - Third-Party Integrations - Threat Protection - Threat Response - Two-Factor Authentication - Vulnerability Scanning - Whitelisting/Blacklisting [See all features](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#features) ### Recognition Avast Premium Business Security is recognized as a top-rated tool in 2 Capterra Shortlist reports No recognitions have been awarded to Microsoft Defender for Office 365 ### Deployment & support Avast Premium Business Security Deployment - Cloud, SaaS, Web-Based - Desktop Mac - Desktop Windows - Desktop Linux - On-Premise Windows - On-Premise Linux - Desktop Chromebook - Mobile Android - Mobile iPhone - Mobile iPad Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos Microsoft Defender for Office 365 Deployment - Cloud, SaaS, Web-Based - Desktop Mac - Desktop Windows - Desktop Linux - On-Premise Windows - On-Premise Linux - Desktop Chromebook - Mobile Android - Mobile iPhone - Mobile iPad Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos ### Company Details Avast Premium Business Security - By Avast - Located in Czechia - Founded in 1988 Microsoft Defender for Office 365 - By Microsoft - Located in United States - Founded in 1975 ## Popular Comparisons [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [Hoxhunt](https://www.capterra.com/p/233248/Hoxhunt/)[4.90 (338)](https://www.capterra.com/p/233248/Hoxhunt/reviews/) Contact vendor for pricing Price Contact vendor for pricing 4.5 Features 4.8 4.5 Ease of Use 4.9 [View full comparison](https://www.capterra.com/compare/219685-233248/Microsoft-Defender-for-Office-365-vs-Hoxhunt) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [SpamTitan](https://www.capterra.com/p/168436/SpamTitan/)[4.56 (563)](https://www.capterra.com/p/168436/SpamTitan/reviews/) Contact vendor for pricing Price $1.26/month 4.5 Features 4.4 4.5 Ease of Use 4.4 [View full comparison](https://www.capterra.com/compare/168436-219685/SpamTitan-vs-Microsoft-Defender-for-Office-365) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)[4.52 (122)](https://www.capterra.com/p/201276/ProtonMail/reviews/) Contact vendor for pricing Price $6.99/month 4.5 Features 4.3 4.5 Ease of Use 4.4 [View full comparison](https://www.capterra.com/compare/201276-219685/ProtonMail-vs-Microsoft-Defender-for-Office-365) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [ESET Endpoint Security](https://www.capterra.com/p/151915/ESET-Endpoint-Security/)[4.65 (1,169)](https://www.capterra.com/p/151915/ESET-Endpoint-Security/reviews/) Contact vendor for pricing Price A$396/year 4.5 Features 4.6 4.5 Ease of Use 4.5 [View full comparison](https://www.capterra.com/compare/151915-219685/ESET-Endpoint-Security-vs-Microsoft-Defender-for-Office-365) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [Topsec Cloud Solutions](https://www.capterra.com/p/145598/Topsec-Email-Security/)[4.87 (69)](https://www.capterra.com/p/145598/Topsec-Email-Security/reviews/) Contact vendor for pricing Price €27/year 4.5 Features 4.9 4.5 Ease of Use 4.9 [View full comparison](https://www.capterra.com/compare/145598-219685/Topsec-Email-Security-vs-Microsoft-Defender-for-Office-365) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [Graphus](https://www.capterra.com/p/219920/Graphus/)[4.30 (27)](https://www.capterra.com/p/219920/Graphus/reviews/) Contact vendor for pricing Price $3/month 4.5 Features 4.1 4.5 Ease of Use 4.5 [View full comparison](https://www.capterra.com/compare/219685-219920/Microsoft-Defender-for-Office-365-vs-Graphus) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [Barracuda Email Protection](https://www.capterra.com/p/175506/Barracuda-Essentials/)[4.18 (11)](https://www.capterra.com/p/175506/Barracuda-Essentials/reviews/) Contact vendor for pricing Price Contact vendor for pricing 4.5 Features 4.1 4.5 Ease of Use 4.5 [View full comparison](https://www.capterra.com/compare/175506-219685/Barracuda-Essentials-vs-Microsoft-Defender-for-Office-365) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [Proofpoint Email Protection](https://www.capterra.com/p/175873/Proofpoint-Email-Protection/)[4.20 (45)](https://www.capterra.com/p/175873/Proofpoint-Email-Protection/reviews/) Contact vendor for pricing Price Contact vendor for pricing 4.5 Features 4.3 4.5 Ease of Use 3.7 [View full comparison](https://www.capterra.com/compare/175873-219685/Proofpoint-Email-Protection-vs-Microsoft-Defender-for-Office-365) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [MimeCast Email Security](https://www.capterra.com/p/119826/MimeCast-Email-Security/)[4.33 (80)](https://www.capterra.com/p/119826/MimeCast-Email-Security/reviews/) Contact vendor for pricing Price Contact vendor for pricing 4.5 Features 4.3 4.5 Ease of Use 4.1 [View full comparison](https://www.capterra.com/compare/119826-219685/MimeCast-Email-Security-vs-Microsoft-Defender-for-Office-365) [Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) vs [Symantec Email Security.cloud](https://www.capterra.com/p/168448/Email-Security-cloud/)[4.47 (159)](https://www.capterra.com/p/168448/Email-Security-cloud/reviews/) Contact vendor for pricing Price Contact vendor for pricing 4.5 Features 4.4 4.5 Ease of Use 4.5 [View full comparison](https://www.capterra.com/compare/168448-219685/Email-Security-cloud-vs-Microsoft-Defender-for-Office-365)