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Cloud Security enables organizations to securely store, access and manage data, applications and infrastructure in a multi-cloud environment. It requires a holistic approach to cloud-native protection, encompassing cloud security policy management, threat detection and prevention, monitoring and log management, as well as IAM practices that enforce the principle of least privilege and strong passwords with two-factor authentication. It also includes a Zero Trust architecture, continuous monitoring and ongoing security training for employees, third-party partners and anyone who uses organizational cloud resources.

To secure cloud environments, a solid governance framework is required to clearly define roles and responsibilities and establish best practices. This is especially important because securing the cloud can be complex as the responsibility for different aspects of the environment varies depending on who owns them. For example, the physical networks and hardware that are used to connect to the cloud are usually owned by the provider but the client owns or is responsible for securing the operating systems, applications and data that reside on them.

The best practices for securing data in the cloud include communications encryption (e.g., with a VPN) and data protection at rest and in transit with strong encryption algorithms and regular key rotation. Companies should also consider isolating cloud data backups to prevent ransomware attacks that target backup files alongside primary data to maximize their impact. Finally, a thorough incident response plan should be in place to contain and recover from any attacks that occur.