Security in AWS VPCs

Securing your AWS VPC is the most important area of cloud architecture. It is crucial to understand your role within the shared responsibility model, which defines the division of security responsibilities between AWS and customers.

In the realm of AWS VPCs, security is a collaborative effort. AWS shoulders the responsibility for securing the underlying infrastructure, while customers are entrusted with safeguarding their applications and data hosted on AWS resources. This shared responsibility model underscores the need for customers to implement robust security measures to protect their cloud-based assets effectively. In practice, this means that AWS will take responsibility for the security of the cloud, so if someone gained unauthorized access to an AWS-held root or administration account, AWS would be accountable. However, if someone gained unauthorized access to a customer-held root or admin account, the customer would be liable. Figure 2.4 shows the different...