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Amazon EMR Serverless now supports AWS KMS customer managed keys for encrypting local disks

Published
January 21, 2026
https://aws.amazon.com/about-aws/whats-new/2026/01/amazon-emr-serverless-aws-kms-customer-managed

Amazon EMR Serverless

Amazon EMR Serverless now supports encrypting local disks with AWS Key Management Service (KMS) customer managed keys (CMKs). This allows you to meet strict regulatory and compliance requirements with additional encryption options beyond default AWS-owned keys, giving you greater control over your encryption strategy.

This feature is available in all supported EMR Releases and in all AWS Regions where Amazon EMR Serverless is available including AWS GovCloud (US) and China regions.

What to do

Source: AWS release notes




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