Network Access Analyzer is an Amazon Virtual Private Cloud (Amazon VPC) feature that identifies unintended network access to AWS resources. The tool helps organizations analyze their data perimeter by evaluating potential network paths that may not meet specified security requirements. It focuses on identifying AWS resources that are accessible from the internet through various network components. Network Access Analyzer examines multiple network elements to determine internet accessibility, including: - Internet gateways - VPC route tables - Network access control lists (ACLs) - Public IP addresses on elastic network interfaces - Security groups The tool enables users to specify their network access requirements and validates whether current configurations align with those requirements. It assists in validating VPC segmentation and analyzing end-to-end network reachability conditions. Organizations can use this tool to identify unintentional inbound internet access that could pose risks to their cloud infrastructure and data security posture.