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Azure Key Vault vs Microsoft Defender External Attack Surface 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

Azure Key Vault
Ranking in Microsoft Security Suite
14th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
51
Ranking in other categories
Enterprise Password Managers (1st), Certificate Management Software (1st)
Microsoft Defender External...
Ranking in Microsoft Security Suite
32nd
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Attack Surface Management (ASM) (12th)
 

Mindshare comparison

As of October 2025, in the Microsoft Security Suite category, the mindshare of Azure Key Vault is 1.1%, up from 1.0% compared to the previous year. The mindshare of Microsoft Defender External Attack Surface Management is 0.4%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsoft Security Suite Market Share Distribution
ProductMarket Share (%)
Azure Key Vault1.1%
Microsoft Defender External Attack Surface Management0.4%
Other98.5%
Microsoft Security Suite
 

Featured Reviews

Rajthilak BS - PeerSpot reviewer
Have addressed compliance challenges but still struggle with seamless integration of certificate issuance between environments
In terms of Azure Key Vault improvements, we have to compare the competitor. If we consider AWS, our bank has Microsoft PKI, which is a Microsoft product, for the entire digital certificate infrastructure. Even in the cloud, when it is AWS, the internal certificates are MS PKI. When we had a problem, users had to come to on-premise to get a certificate and import it to AWS Certificate Manager and assign it. We wondered why we could not issue the certificate directly from the cloud for cloud users. There was a simple way in AWS. They have a Private Certificate Authority (PCA) and Amazon Certificate Manager. Private Certificate Authority issues certificates to Amazon services. They also provide Amazon Certificate Manager to store and deploy certificates. These are two neat components - one is an issuer and another is storage and deployment solutions for certificates. With PCA, I can directly enable it and get certificates from AWS itself. AWS can issue SSL/TLS certificates if you enable it directly. If you consider Azure, it is not very clear. Even the naming convention, Key Vault, might not suggest that this is a PKI or certificate manager. You cannot issue certificates directly. They have app certificates and did not have a clear-cut certificate management solution in the cloud when I worked at that time. I am not sure whether they have updated Azure Key Vault as a full-fledged PKI solution now. From what I saw, it was not a full-fledged PKI solution. We are not majorly using Azure Key Vault because it is only for storing secrets. If some solutions can provide guidance on how we can maximize leverage, we can immediately look forward to doing that. We already have some business problems we want to solve. While our primary focus is AWS, many of the services such as ADO are running on Azure, and the secondary services are growing bigger.
AndyChan3 - PeerSpot reviewer
Enhanced visibility and exposes vulnerabilities but needs more integration
I am currently in the pilot stage of implementing Microsoft External Attack Surface Management (EASM). My organization is transitioning to a comprehensive track of Microsoft solutions, and we will move to full-scale production in another year, maybe Microsoft External Attack Surface Management…

Quotes from Members

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

Pros

"The solution uses the encryption technique to store the secret information data that uses EPCE. There is also one feature that monitors Azure Key Vault."
"The product's integration capabilities are good."
"AI has been introduced to Azure."
"The solution's most valuable features are reusability and safety."
"Azure Key Vault's performance is excellent. It makes infrastructure management easier."
"The product’s advantageous feature is integration."
"We only use the basic features and those are the ones that have the ability to tie into the app, the secrets, and the passwords and encrypt them."
"It allows me to run applications using these certificates without directly installing them."
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"It seems to be better at protecting from cyberattacks."
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
 

Cons

"One area for improvement is the notification system for secret expiration. It would be beneficial if the service could handle this more autonomously, eliminating the need for additional integrations."
"While it's very reliable in terms of stability, there's always room for improvement."
"It is complicated to use different services and products along with Azure Key Vault."
"Azure Key Vault takes time to fetch values while integrating it with the code written in .NET format."
"The big problem with Azure Key Vault is key rotation. We haven't found a good way to synchronize the credentials between the databases and Key Vault."
"The whole problem of password rotation could be improved."
"I would like more code examples."
"It needs to offer dynamic secrets management."
"The integration is not as seamless compared to competitors like Palo Alto."
"With Microsoft, support is always crazy, it's not easy to get support."
"Further integration across different Microsoft products would be an improvement."
 

Pricing and Cost Advice

"Currently, the solution's pricing is based on the number of transactions, which is very high in some cases."
"I rate the solution's pricing a four out of ten."
"Azure Key Vault is expensive."
"The pricing is decent. It has a pretty low price. It is a straightforward cost based on usage."
"The price of the solution is reasonable for what we are using it for."
"I find the pricing of Azure Key Vault to be reasonable."
"It is a cheap option."
"It is less expensive compared to other competitors."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Computer Software Company
13%
Manufacturing Company
9%
Government
7%
Computer Software Company
18%
Financial Services Firm
13%
Manufacturing Company
7%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise11
Large Enterprise26
No data available
 

Questions from the Community

Which is better - Azure Key Vault or AWS Secrets Manager?
Azure Key Vault is a SaaS solution. You can easily store passwords and secrets securely and encrypt them. Azure Key Vault is a great solution to ensure you are compliant with security and governanc...
What do you like most about Microsoft Azure Key Vault?
With Azure Key Vault, we can generate our own keys and then import them inside the system, which provides a higher level of security than provider-managed keys.
What needs improvement with Microsoft Defender External Attack Surface Management?
Further integration across different Microsoft products would be an improvement. Introduction of more AI automation into the products would also be beneficial. The integration is not as seamless co...
What is your primary use case for Microsoft Defender External Attack Surface Management?
I am currently in the pilot stage of implementing Microsoft External Attack Surface Management (EASM). My organization is transitioning to a comprehensive track of Microsoft solutions, and we will ...
 

Also Known As

Microsoft Azure Key Vault, MS Azure Key Vault
No data available
 

Overview

 

Sample Customers

Adobe, DriveTime, Johnson Controls, HP, InterContinental Hotels Group, ASOS
Information Not Available
Find out what your peers are saying about Azure Key Vault vs. Microsoft Defender External Attack Surface Management and other solutions. Updated: September 2025.
869,202 professionals have used our research since 2012.