A company runs an Amazon RDS MySQL DB instance.

Copy an automated RDS snapshot to the security account using the copy-db-snapshot command with the AWS CLI.

Create an RDS MySQL Read Replica for the critical database in the security account, then enable automatic backups for the Read Replica.

Create an RDS snapshot with the AWS CLI create-db-snapshot command, share it with the security account, then create a copy of the shared snapshot in the security account.

Use AWS DMS to replicate data from the critical database to another RDS MySQL instance in the security account, then use an automated backup for the RDS instance.