Answer: Customer data

## Explanation According to the AWS Shared Responsibility Model: - **Customer data** is **ALWAYS** the customer's responsibility to manage and secure - **Software licenses** - AWS manages infrastructure licenses, but customers are responsible for their application software licenses - **Networking** - AWS manages the underlying network infrastructure, but customers configure security groups, VPCs, etc. - **Encryption keys** - While customers can manage their own keys, AWS also provides key management services ### Key Points: - **AWS Responsibility**: Security **OF** the cloud (infrastructure, hardware, software, facilities) - **Customer Responsibility**: Security **IN** the cloud (customer data, platform/applications, identity/access management) Customer data is the only item in this list that is unequivocally and always the customer's responsibility under the shared responsibility model.

Author: Ritesh Yadav