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Antivirus for Amazon S3 vs Microsoft Exchange Online Protection (EOP) 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

Antivirus for Amazon S3
Ranking in Anti-Malware Tools
25th
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Microsoft Exchange Online P...
Ranking in Anti-Malware Tools
12th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Email Security (7th)
 

Mindshare comparison

As of January 2026, in the Anti-Malware Tools category, the mindshare of Antivirus for Amazon S3 is 0.4%, down from 0.6% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 1.1%, down from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Anti-Malware Tools Market Share Distribution
ProductMarket Share (%)
Microsoft Exchange Online Protection (EOP)1.1%
Antivirus for Amazon S30.4%
Other98.5%
Anti-Malware Tools
 

Featured Reviews

Kalpesh Potghante - PeerSpot reviewer
Senior Manager at Deloitte
Secure file sharing has protected global storage and improves confidence with external partners
The best features Antivirus for Amazon S3 offers include that it is really a built-in feature which is really great, as you don't have to do anything extra, there's no operational complexity or cost overhead associated with it, and because it's a managed solution, it's easy for us to configure policies as S3 buckets are created globally and make sure they have the necessary virus protection as needed. The simplicity and ease of policy configuration have helped my team day-to-day because, as it is part of the AWS ecosystem, I don't need to really hire a separate skill set to configure this service, and moreover, if I use the console, all the features are available to me at a click, and I can also programmatically control it, making configuring the antivirus part of setting S3 objects rather than setting up a separate service altogether on top of S3.
NancyHartman - PeerSpot reviewer
Business Process Manager/ Educational Technologist at a educational organization with 1,001-5,000 employees
Layered email security has protected sensitive research and still flags phishing in real time
The valuable features of Microsoft Exchange Online Protection (EOP) include providing an additional layer of protection, as it builds on the basic Exchange level of security that allows us to get our work done. Another feature I appreciate is the ability to question things, as our Exchange server allows us to identify in real-time if an email is a phishing email or spam email. It really helps us identify risks, especially through our external exchanges via email or through our cloud-based platforms. Our Exchange system blocks any embedded AI from all our applications and products, so we cannot use embedded AI in our daily work from our official laptops because we have secure information. The system is quite locked down.

Quotes from Members

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

Pros

"Antivirus for Amazon S3 offers some of the best features including deployment using Terraform, the ability to scan new and existing objects, very quick setup time, multiple engine support such as Sophos, CIS Premium, and CIS Secure, and extensive vendor support through many marketplaces."
"Antivirus for Amazon S3 is a great tool that is reliable and easy to integrate, adding an essential security layer for S3-based workflows which may be subject to malicious attacks and protecting the overall infrastructure while also reducing the burden of checking those files on your own."
"Antivirus for Amazon S3 has positively impacted my organization by giving us the confidence that we can really expose our S3 buckets to the external world without having to worry about security, and from a developer standpoint, we know that at any point in time globally if S3 buckets are created, we have templates that will automatically enforce the antivirus policies there, improving our overall security posture rather than compromising it because we do have a large footprint on S3."
"Microsoft Exchange Online Protection (EOP) is the best email solution with more features and robust security, making it ideal for corporate use."
"It is scalable."
"The most valuable features of Microsoft Exchange Online Protection are the EOP, ATP, safe links, fishing, and antispam."
"It offers great security against malware and other threats."
"The security features provided by Microsoft are robust."
"The initial setup of Microsoft Exchange Online Protection was easy."
"The initial setup is just a standard process."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
 

Cons

"I think Antivirus for Amazon S3 could be improved by slightly further automating the process; beyond just the ability to send notifications, if an email could be crafted or if communication through any channel could be established with the person or team who uploaded the file, that level of automation could be avoided on our end, allowing us to configure an entire loop from detecting a malicious upload to contacting the uploader and taking corrective action, which I think would be really cool."
"I think Antivirus for Amazon S3 can be improved by including patches over time and adding forensic analysis of data to show where viruses may have been incorporated."
"The reporting part could be a bit more detailed."
"The solution needs to improve its backup."
"The solution can be complex at times. It would be nice to have the on-server version. It needs to improve the stability as well."
"The biggest issue that I experience is that Microsoft keeps moving things around, and it's very inconsistent as to where you find the information when you're trying to work on different pieces."
"Some of the searchability when looking for specifics in Exchange logs is tedious."
"Having orchestration features added to Microsoft Exchange Online Protection, particularly automation and remediation, would be quite useful."
"The product could be more stable. Microsoft products could be more stable because sometimes, even though they are updating some things, we cannot find those updates."
"Online Protection has an issue in that it doesn't provide an option to stop impersonation."
"Microsoft has some training portals, but more could be developed."
 

Pricing and Cost Advice

Information not available
"The solution is expensive but is backed by Microsoft's reputation."
"The tool's pricing is excellent."
"Microsoft Exchange Online Protection is a good solution at an affordable price. It is a good investment."
"The product's pricing is competitive for the US market."
"The pricing for the solution depends on what you are trying to achieve with the use of the product, but I know that it is not a cheaply priced product. Yearly payments have to be made towards the licensing fees of the solution."
"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"The price could be lower."
"The solution's pricing is subscription-based rather than a yearly licensing cost. Pricing is based on the size of the environment and company and can be expensive."
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Top Industries

By visitors reading reviews
No data available
Computer Software Company
11%
Financial Services Firm
10%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise7
Large Enterprise11
 

Questions from the Community

What is your experience regarding pricing and costs for Antivirus for Amazon S3?
Since using Antivirus for Amazon S3, we have been able to detect malicious files, and we have configured AWS EventBridge to notify us whenever such an incident occurs, leading to an average of 200 ...
What needs improvement with Antivirus for Amazon S3?
The reporting part could be a bit more detailed. A summary of all the scans in a better way would be beneficial. This part could be improved or enhanced.
What is your primary use case for Antivirus for Amazon S3?
My main use case for Antivirus for Amazon S3 is to automatically scan objects as soon as they're uploaded into S3 buckets. It's mostly used in buckets where files are uploaded by external users or ...
What do you like most about Microsoft Exchange Online Protection?
The initial setup was easy. The configuration process is very straightforward.
What needs improvement with Microsoft Exchange Online Protection?
The user interface of Microsoft Exchange Online Protection (EOP) has room for improvement, as at times it doesn't make sense where to go to access certain features.
What is your primary use case for Microsoft Exchange Online Protection?
My use case for Microsoft Exchange Online Protection (EOP) is basically to protect ourselves from phishing emails and to improve our email security.
 

Also Known As

No data available
Microsoft EOP, MS Exchange Online Protection
 

Overview

Find out what your peers are saying about Antivirus for Amazon S3 vs. Microsoft Exchange Online Protection (EOP) and other solutions. Updated: January 2026.
881,082 professionals have used our research since 2012.