How attackers abuse S3 Bucket Namesquatting — And How to Stop Them

This report outlines the risk of AWS S3 bucket namesquatting due to predictable, globally unique bucket naming (notably in AWS CDK bootstrap patterns), explaining how attackers can pre-register buckets to redirect traffic, trigger DoS, or manipulate cloud resources; it cites an example of traffic redirection via S3 and Route 53, and recommends mitigations such as customizing bucket names, restricting public access, decommissioning fraudulent domains, and adjusting DNS, while highlighting Varonis capabilities to detect misconfigurations, classify sensitive data, apply public access blocks, and automate remediation.