Assetnote ASM vs FullHunt: 2026 Comparison
Assetnote ASM is a commercial external attack surface management tool by Assetnote. FullHunt is a free external attack surface management tool. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Mid-market and enterprise security teams managing sprawling external infrastructure will get the most from Assetnote ASM because its hourly asset discovery actually catches exposures before your business units spin up new services, not weeks after. The platform covers ID.AM and DE.CM across NIST CSF 2.0, meaning you're building a real asset inventory while monitoring it continuously, and the exploit-based verification eliminates the noise that buries actionable findings in traditional scanners. Skip this if your organization lacks the headcount to operationalize a workflow-driven program; Assetnote's strength is enabling lean teams to prioritize, not giving you a dashboard to ignore.
Security teams responsible for external-facing infrastructure will find FullHunt valuable for continuous discovery of forgotten assets and shadow services that traditional vulnerability scanners miss. The platform's passive reconnaissance approach identifies attack surface without active scanning, reducing the risk of triggering IDS alerts or disrupting production systems. Skip FullHunt if your org needs deep integration with existing SIEM or ticketing workflows; the tool excels at surface enumeration but assumes you'll handle downstream remediation through separate channels.
