rpCheckup is an AWS resource policy security analysis tool that examines resource-based policies across AWS accounts to identify access patterns and potential security risks. The tool categorizes resources into four visibility levels: - Public resources accessible from the internet - External account access from accounts outside the organization - Intra-organization account access between accounts within the same organization - Private resources with restricted access rpCheckup supports analysis of multiple AWS resource types including ACM Private Certificate Authorities, CloudWatch Resource Policies, EBS Volume Snapshots, EC2 AMIs, ECR Container Repositories, EFS File Systems, ElasticSearch Domains, and Glacier Vaults. The tool generates both HTML and CSV reports to facilitate review and analysis of resource visibility across organizational accounts. It uses the same resource coverage as the Endgame tool for policy analysis, providing comprehensive coverage beyond what AWS Access Analyzer offers for certain resource types. rpCheckup helps security teams understand resource exposure patterns and identify potential misconfigurations in resource-based policies across their AWS infrastructure.