S3cario is a security testing tool designed for AWS S3 bucket permission validation and security assessment. The tool enables users to simulate various security scenarios to evaluate S3 bucket configurations and access controls. It provides functionality to test for common S3 security vulnerabilities including unauthorized access patterns and potential data exposure risks. The tool features a user-friendly interface that facilitates the testing and validation of S3 bucket permissions across different access scenarios. It allows security professionals to systematically evaluate bucket policies, ACLs, and other access control mechanisms. S3cario supports testing for misconfigurations that could lead to data breaches or unauthorized access to stored objects. The tool can be used to verify that S3 buckets are properly secured according to security best practices and organizational requirements.