Intruder Discover Attack Surface vs SubOver: side-by-side comparison (2026)

Intruder Discover Attack Surface: Attack surface management platform for discovering and securing exposed assets. Built by Intruder.

SubOver: A powerful tool for finding and exploiting subdomain takeover vulnerabilities.

The table above shows where their features, integrations, deployment and company size fit differ.

Intruder Discover Attack Surface is made by Intruder. SubOver is open-source with 957 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. Intruder Discover Attack Surface and SubOver are both External Attack Surface Management products, and both cover Subdomain Enumeration. Key differences: Intruder Discover Attack Surface is Commercial while SubOver is Free, SubOver is open-source. Use the table above to see where features, deployment and company size fit differ.