The Shared Responsibility Model in the Cloud — Practical guide + checklist

 Cloud computing makes scaling and innovation fast — but security stays a joint job. The Shared Responsibility Model tells you exactly who does what: the cloud provider secures the cloud’s infrastructure, and you secure what you put in the cloud. This simple rule shapes compliance, architecture and daily operations.  What the model actually means (simple) Cloud provider responsibilities: physical datacenters, host OS, virtualization, and foundational services. AWS and Azure both describe the provider’s role as “security of the cloud.” Customer responsibilities: data, identity and access management, application configuration, encryption keys, and patching of guest OS or app code — sometimes called “security in the cloud.”  Why it matters for your business If you assume the provider covers everything, you can leave gaps: misconfigured storage, weak IAM policies, or unpatched apps create breaches. Conversely, over-investing in things the provider already han...