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AWS mgn: Added same-account restriction for MGN EC2 instance policy

Service: mgn · 2026-07-20 · Documentation high

File: mgn/latest/ug/security-iam-awsmanpol-AWSApplicationMigrationServiceEc2InstancePolicy.md · Type: iam

Summary

Added explicit statement restricting policy usage to the same AWS account.

Security assessment

The added line clarifies account isolation requirements, preventing potential cross-account privilege escalation or unauthorized access.

Evidence

+This policy allows installing and using the AWS Replication Agent, which is used by AWS Transform MGN to migrate source servers that run on EC2 (cross-Region or cross-AZ). An IAM role with this policy should be attached (as an EC2 Instance Profile) to the EC2 Instances. This policy can only be used within the same AWS account.

Diff

diff --git a/mgn/latest/ug/security-iam-awsmanpol-AWSApplicationMigrationServiceEc2InstancePolicy.md b/mgn/latest/ug/security-iam-awsmanpol-AWSApplicationMigrationServiceEc2InstancePolicy.md
index 28e165e98..3d3b3e546 100644
--- a//mgn/latest/ug/security-iam-awsmanpol-AWSApplicationMigrationServiceEc2InstancePolicy.md
+++ b//mgn/latest/ug/security-iam-awsmanpol-AWSApplicationMigrationServiceEc2InstancePolicy.md
@@ -11 +11 @@ NEW - You can now accelerate your migration and modernization with AWS Transform
-This policy allows installing and using the AWS Replication Agent, which is used by AWS Transform MGN to migrate source servers that run on EC2 (cross-Region or cross-AZ). An IAM role with this policy should be attached (as an EC2 Instance Profile) to the EC2 Instances. 
+This policy allows installing and using the AWS Replication Agent, which is used by AWS Transform MGN to migrate source servers that run on EC2 (cross-Region or cross-AZ). An IAM role with this policy should be attached (as an EC2 Instance Profile) to the EC2 Instances. This policy can only be used within the same AWS account.