Under the AWS shared responsibility model, which task is the customer’s responsibility?

The AWS shared responsibility model dictates that AWS is responsible for the security of the cloud, while the customer is responsible for security in the cloud. Configuring firewalls and network settings (like Security Groups and Network ACLs) falls under the customer's responsibility for securing their data and applications within AWS. Maintaining the security of the AWS Cloud is AWS's responsibility, covering the global infrastructure. Applying operating system patches to Amazon RDS instances is also AWS's responsibility, as RDS is a managed service where AWS handles the underlying OS and database patching. Implementing physical and environmental controls for the data centers is solely AWS's responsibility.