Attack Surface Management (ASM) platforms like RiskIQ and Expander help security teams discover assets, assess risks, and prioritize threats across complex environments. When evaluating these tools, key criteria include discovery depth to identify both known and unknown assets, accurate risk scoring models that highlight the most exploitable vulnerabilities, strong cloud support for monitoring cloud-native services, and high-quality alerts that reduce noise and focus attention on real threats. In practice, features that add the most value are centralized dashboards for visibility, actionable remediation guidance, integration with existing security and SIEM tools, and automated monitoring that continuously updates risk assessments, enabling teams to prioritize the highest-impact exposures efficiently and strengthen overall security posture.