Shared responsibility is the cloud principle that states that the security and compliance of the cloud service are shared between the cloud service provider and the cloud customer. The cloud service provider is responsible for securing the cloud infrastructure, such as the hardware, software, networking, and facilities, while the cloud customer is responsible for securing the cloud data, applications, and access, such as the encryption, backup, authentication, and authorization. By following the shared responsibility principle, the cloud customer can manage the risk of a network breach by implementing appropriate security measures and controls on their end, such as firewalls, antivirus, VPNs, and IAM. The cloud customer can also leverage the security features and services offered by the cloud service provider, such as encryption, monitoring, auditing, and incident response. Reference: CompTIA Cloud Essentials+ CLO-002 Certification Study Guide, Chapter 5: Managing Cloud Security, Section 5.1: Understanding Cloud Security Concepts, Page 1611