Amazon OpenSearch Service now supports index-level encryption

This article announces index-level encryption support in Amazon OpenSearch Service, enabling per-index data encryption using AWS KMS customer managed keys.

• Encrypt data at rest on a per-index basis with customer managed KMS keys
• Use different keys for different indexes on the same domain
• Enables granular, tenant-specific encryption policies
• Builds on existing domain-level encryption capability
• Available at no additional cost for OpenSearch 3.3 or later
• Supported in 14 AWS regions globally

Index-level encryption provides more granular control over data encryption in OpenSearch domains, allowing organizations to implement tenant-specific security policies.