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Cloud Security focuses on defending and securing data, applications and workloads hosted in the cloud. This is a complex challenge for any organization given the ever-changing nature of cyber threats, but it’s vital to ensure that data and systems are protected. There are three primary pillars of cloud security: integrity, availability and governance.

Integrity aims to ensure that data and systems remain accurate, reliable, and tampering-free. This includes techniques like hashing and checksums, version control and backups to protect against changes, and adopting secure DevOps practices to prevent application vulnerabilities. Availability means ensuring that cloud services, applications and data are available when needed. This requires implementing redundancy, deploying distributed denial-of-service (DDoS) protection, and performing regular system updates to mitigate vulnerabilities that could impact performance.

Governance and Compliance focuses on adhering to regulatory standards, industry best practices and other security requirements when managing and monitoring cloud resources. This also includes implementing policies that enforce access control and enforce data encryption.

There are several deployment models for securing the cloud: Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS). Each of these models differs in how security responsibilities are divided between the CSP and customer. Clarifying these responsibilities helps prevent gaps in security, reduces risk and aligns security to compliance requirements. In addition, a clear division of responsibilities helps improve visibility into cloud usage and security posture. This information can be used to prevent data breaches, strengthen identity management and enable compliance.