# IAM and access control
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A Channel uses IAM roles for authorization. Follow least privilege:
+ Scope S3 Tables permissions to the specific bucket used by the Channel.
+ Scope Glue Schema Registry permissions to the specific registry used by the Channel.
+ Use `aws:SourceArn` and `aws:SourceAccount` in the trust policy to prevent confused deputy attacks.

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon Managed Streaming for Apache Kafka. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query msk` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).