What Is Cloud Misconfiguration & How Do You Prevent It?

Cloud misconfiguration is one of the top causes of data breaches, yet remains highly preventable. Common issues include publicly exposed storage buckets, overly permissive IAM roles, unrestricted network access, disabled logging, and unencrypted data. Root causes range from insecure vendor defaults and lift-and-shift migration debt to knowledge gaps and shared responsibility confusion. Detection approaches include CSPM tools, IaC scanning (Checkov, Trivy, Terrascan), cloud-native policy services, and SIEM-integrated audit logs. Prevention focuses on defining infrastructure as code, enforcing policy as code, applying least privilege by default, provisioning from hardened landing zones, and running regular access reviews. IBM's 2025 data puts the average breach cost at $4.44M globally and $10.22M in the US.

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