--- title: AWS Key Management Service (KMS) Reviews meta_title: 'AWS Key Management Service (KMS) Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 34 reviews by the users' company size, role or industry to find out how AWS Key Management Service (KMS) works for a business like yours. aggregate_rating: rating_value: 4.4 review_count: 34 scale: '5' date_modified: '2026-10-17' parent_category: name: Data Security url: https://www.g2.com/categories/data-security ---

AWS Key Management Service (KMS) Pros and Cons: Top Advantages and Disadvantages

Quick AI Summary Based on G2 Reviews

Generated from real user reviews

Users appreciate the abundance of services offered by AWS, enhancing their cloud capabilities significantly. (1 mentions)
Users appreciate the extensive range of services offered by AWS KMS, enhancing security and architecture capabilities. (1 mentions)
Users appreciate the robust security features of AWS KMS, enhancing their protection against various cyber threats. (1 mentions)
Users report access issues with AWS KMS, experiencing failures in protection during DDoS attack simulations. (1 mentions)
Users report connectivity issues with AWS KMS, particularly during DDoS attack simulations, impacting resource accessibility. (1 mentions)

Top Pros or Advantages of AWS Key Management Service (KMS)

1. Azure Services
Users appreciate the abundance of services offered by AWS, enhancing their cloud capabilities significantly.
See 1 mentions

See Related User Reviews

Prashant G.
PG

Prashant G.

Small-Business (50 or fewer emp.)

4.0/5

"AWS need improvement in some areas of security"

What do you like about AWS Key Management Service (KMS)?

AWS has good number of services which are best among all Cloud service providers for me like AWS Transist Gateway to support Hub and Spoke architectur

2. Cloud Services
Users appreciate the extensive range of services offered by AWS KMS, enhancing security and architecture capabilities.
See 1 mentions

See Related User Reviews

Prashant G.
PG

Prashant G.

Small-Business (50 or fewer emp.)

4.0/5

"AWS need improvement in some areas of security"

What do you like about AWS Key Management Service (KMS)?

AWS has good number of services which are best among all Cloud service providers for me like AWS Transist Gateway to support Hub and Spoke architectur

3. Security Protection
Users appreciate the robust security features of AWS KMS, enhancing their protection against various cyber threats.
See 1 mentions

See Related User Reviews

Prashant G.
PG

Prashant G.

Small-Business (50 or fewer emp.)

4.0/5

"AWS need improvement in some areas of security"

What do you like about AWS Key Management Service (KMS)?

AWS has good number of services which are best among all Cloud service providers for me like AWS Transist Gateway to support Hub and Spoke architectur

Top Cons or Disadvantages of AWS Key Management Service (KMS)

1. Access Issues
Users report access issues with AWS KMS, experiencing failures in protection during DDoS attack simulations.
See 1 mentions

See Related User Reviews

Prashant G.
PG

Prashant G.

Small-Business (50 or fewer emp.)

4.0/5

"AWS need improvement in some areas of security"

What do you dislike about AWS Key Management Service (KMS)?

AWS Shield advance service needs an improvement to protect from every type of DDoS attacks as it was failed twice to detect DDoS attacks and failed to

2. Connectivity Issues
Users report connectivity issues with AWS KMS, particularly during DDoS attack simulations, impacting resource accessibility.
See 1 mentions

See Related User Reviews

Prashant G.
PG

Prashant G.

Small-Business (50 or fewer emp.)

4.0/5

"AWS need improvement in some areas of security"

What do you dislike about AWS Key Management Service (KMS)?

AWS Shield advance service needs an improvement to protect from every type of DDoS attacks as it was failed twice to detect DDoS attacks and failed to

Top-Rated Alternatives

Vault
Vault
4.3/5(69)
Azure Key Vault
Azure Key Vault
4.5/5(56)
Egnyte
Egnyte
4.4/5(1,175)

AWS Key Management Service (KMS) Reviews FAQs

Generated using AI

Last updated: Nov 04, 2026

What is AWS Key Management Service (KMS), and what problem is it built to solve?

AWS Key Management Service (KMS) centralizes encryption key management for AWS workloads. It helps teams encrypt data and manage key access without handling keys separately across each application.

What company sizes and industries is AWS Key Management Service (KMS) the best fit for?

Positive customer use clusters most around enterprise organizations, with small and mid-market businesses also represented. Software and technology-related work stand out among the industries using it.
  • Company size — Enterprise organizations, alongside small businesses and mid-market teams.
  • Industry — Computer software and technology/security-related industries, with additional use in areas such as retail, financial services, and consulting.

What customer support options does AWS Key Management Service (KMS) provide, and how do users find the overall support experience?

Support is available through email/help desk, a knowledge base, and FAQs or forums. The support experience appears mixed: some users describe helpful assistance, while others indicate that consistency could improve.

Is AWS Key Management Service (KMS) considered safe and secure for handling data?

AWS Key Management Service (KMS) is used to protect sensitive data through centralized key management and encryption. Users also value access controls and key rotation, while some note that configuring key policies and permissions can take time to understand.

AWS Key Management Service (KMS) Reviews (34)

Reviews

AWS Key Management Service (KMS) Reviews (34)

4.4
34 reviews
Search reviews
Filter Reviews
Clear Results
G2 reviews are authentic and verified.
Here's how.
Verified User in Information Technology and Services
UI
Verified User in Information Technology and Services
Enterprise (> 1000 emp.)
Business partner of the seller or seller's competitor, not included in G2 scores.
"Secure Your Secrets with Ease"
4.5/5
What do you like best about AWS Key Management Service (KMS)?

Use your IAM roles to manage your secrets and limit the blast radius. Works great to manage configuration securely. Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

Needs reporting of assets, ie certificates with private key, that would be better managed in ACM. Review collected by and hosted on G2.com.

Verified User in Consumer Electronics
UC
Verified User in Consumer Electronics
Mid-Market (51-1000 emp.)
"the most useful service of Amazon"
4.5/5
What do you like best about AWS Key Management Service (KMS)?

I like this service because for me it is the most useful of Amazon. When you encounter problems accessing your account on this website, the system they use for validation is one of the most secure. Additionally, they protect your personal data that they store. Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

I do not like that the code they send you expires so quickly; it should last longer. Review collected by and hosted on G2.com.

Verified User in Computer Software
UC
Verified User in Computer Software
Mid-Market (51-1000 emp.)
"Encryption is key"
5/5
What do you like best about AWS Key Management Service (KMS)?

Love that Amazon KMS is fully managed by the AWS team and helps free up my time and my team's time by owning/maintaining the underlying infrastructure. Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

Not many complaints or issues so far. Been pretty happy with it. Review collected by and hosted on G2.com.

Verified User in Computer Software
AC
Verified User in Computer Software
Enterprise (> 1000 emp.)
"kms review"
3/5
What do you like best about AWS Key Management Service (KMS)?

simple easy and secure services to use, sdk is simple useful and robust. Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

Better error reporting, sdk has rate limiting enabled which took time to find. Review collected by and hosted on G2.com.

Verified User in Hospitality
AH
Verified User in Hospitality
Enterprise (> 1000 emp.)
"We have used it for replacing old technology of Safenet"
3.5/5
What do you like best about AWS Key Management Service (KMS)?

The best part of this product is that it is hosted in AWS. Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

It is sometimes difficult for newcomers to learn this tool. Not easy to learn for beginners. Review collected by and hosted on G2.com.

Verified User in Program Development
UP
Verified User in Program Development
Small-Business (50 or fewer emp.)
"Generally easy and hopefully secure!"
4/5
What do you like best about AWS Key Management Service (KMS)?

Easy to create keys and rotate as per regulatory security needs. Fast to pick up and easy to use with other software. Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

Sometimes too secure: a key is only available for download for a very brief period of time. Review collected by and hosted on G2.com.

Verified User in Computer & Network Security
UC
Verified User in Computer & Network Security
Enterprise (> 1000 emp.)
"Heavily used"
4.5/5
What do you like best about AWS Key Management Service (KMS)?

Ease of using keys and managing at one place Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

Nothing specific. It helps us manage them at ease Review collected by and hosted on G2.com.

Verified User in Sporting Goods
US
Verified User in Sporting Goods
Enterprise (> 1000 emp.)
"Does its job"
5/5
What do you like best about AWS Key Management Service (KMS)?

It is easy to use and reliable, no problems Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

did not encounter any problems so far, so far positive Review collected by and hosted on G2.com.

Verified User in Computer Networking
UC
Verified User in Computer Networking
Enterprise (> 1000 emp.)
"Super"
5/5
What do you like best about AWS Key Management Service (KMS)?

We used kms heavily in our platform, easy to use Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

nothing wrong we found it, its good , we did not find anhthing Review collected by and hosted on G2.com.

Verified User in Publishing
AP
Verified User in Publishing
Enterprise (> 1000 emp.)
"KMS"
4.5/5
What do you like best about AWS Key Management Service (KMS)?

Autorotation of keys and centralized location of keys Review collected by and hosted on G2.com.

What do you dislike about AWS Key Management Service (KMS)?

not being able importing a key into an already existing CMK Review collected by and hosted on G2.com.

Work at Amazon Web Services (AWS)?

Claim this profile to respond to reviews, update product info, and reach in-market buyers.

Claim this profile
Categories on G2
Explore More