Amazon EC2 Fleet adds new encryption attribute for instance type selection

Published
November 21, 2025
https://aws.amazon.com/about-aws/whats-new/2025/11/amazon-ec2-fleet-encryption-attribute-instance-type-selection/

Amazon EC2 Fleet Encryption Attribute for ABIS

Amazon EC2 Fleet now supports a new encryption attribute for Attribute-Based Instance Type Selection (ABIS). Customers can use the RequireEncryptionInTransit parameter to launch instance types that support encryption-in-transit, alongside other resource requirements.

This new attribute addresses compliance needs for customers using VPC Encryption Controls in enforced mode, requiring all network traffic to be encrypted in transit. Combining encryption requirements with other instance attributes in ABIS allows for instance type diversification while meeting security needs.

What to do

  • Set the RequireEncryptionInTransit parameter to true in InstanceRequirements when calling the CreateFleet or GetInstanceTypesFromInstanceRequirements APIs.

Source: AWS release notes




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