Public cloud security is increasingly complex due to numerous identities and resources across diverse environments. Common AWS misconfigurations include unsecured root accounts, overly permissive security groups, excessive IAM permissions, misconfigured S3 buckets, lack of encryption, poor key management, and inadequate logging. These errors can expose sensitive data and increase breach risks. Preventing misconfigurations requires enforcing least privilege access, enabling multi-factor authentication, regularly auditing permissions, encrypting data, and continuous monitoring with tools like AWS GuardDuty, Config, and Security Hub. Automation, employee training, and configuration management tools further reduce human error and ensure consistent security policies.

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