AWS CLI Encrypt Bucket

Here’s the CLI command to set server-side AES-256 encryption on a bucket.

<pre lang="bash">$ aws s3api put-bucket-encryption --bucket bucket-name \
--server-side-encryption-configuration \
'{"Rules": [{"ApplyServerSideEncryptionByDefault": {"SSEAlgorithm": "AES256"}}]}'

You can apply this to any existing bucket.