Cloud computing security, often referred to as cloud security, encompasses a set of technologies, policies, controls, and practices designed to safeguard cloud-based systems, data, and infrastructure from internal and external threats. It ensures the protection of applications, data, and resources hosted in cloud environments, whether public, private, or hybrid.

Cloud security addresses critical aspects such as data protection, access management, compliance, and disaster recovery. It involves securing data at rest and in transit, managing user access through identity and access management (IAM), and ensuring compliance with regulatory standards.