Which party shares responsibility with AWS for the security and compliance of an AWS account and its resources?

The Shared Responsibility Model dictates that AWS is responsible for the security of the cloud (e.g., global infrastructure, hardware, software, networking, facilities), while the customer is responsible for security in the cloud. This includes customer data, operating systems, network and firewall configurations, and platform applications. Third-party vendors, reseller partners, and internet providers are external entities that may interact with AWS or customer resources but do not share the direct security and compliance responsibility for the AWS account itself.