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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
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Verified User in Marketing and Advertising
CM
Verified User in Marketing and Advertising
Mid-Market (51-1000 emp.)
"Encryption at rest using KMS"
4.5/5
What do you like best about AWS Key Management Service (KMS)?

Data security with KMS to achieve encryption at rest Review collected by and hosted on G2.com.

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

Nothing at this point for our requirements Review collected by and hosted on G2.com.

Verified User in Information Technology and Services
CI
Verified User in Information Technology and Services
Enterprise (> 1000 emp.)
Business partner of the seller or seller's competitor, not included in G2 scores.
"Efficient key management service for public cloud (AWS)"
4/5
What do you like best about AWS Key Management Service (KMS)?

Ease of use, creating keys, rotating them per best practices under the well architected framework Review collected by and hosted on G2.com.

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

UI can be improved as a larger number of key management needs more of a dev ops feel Review collected by and hosted on G2.com.

Verified User in Financial Services
AF
Verified User in Financial Services
Enterprise (> 1000 emp.)
"KMS"
4/5
What do you like best about AWS Key Management Service (KMS)?

The best way to protect data and store and manage keys. It helps us meet regulatory and compliance needs. Want to have a centralized management for keys this is the way to go. Review collected by and hosted on G2.com.

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

There is no major issue that I do not like about this. Review collected by and hosted on G2.com.

Verified User in Logistics and Supply Chain
AL
Verified User in Logistics and Supply Chain
Small-Business (50 or fewer emp.)
"Easy Service To Maintain Security"
5/5
What do you like best about AWS Key Management Service (KMS)?

AWS KMS has very clear use cases and walks you through exactly what needs to be done to set up keys. After it's been set up, you can assign keys to different applications through a few clicks, and ensures that your applications are always secure the way you want them. Review collected by and hosted on G2.com.

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

Once you generate keys, you cannot download them after the initial download process. Although I dislike it, from a security perspective it makes sense. Review collected by and hosted on G2.com.

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