The Assetnote platform enables organizations to effectively map and continuously monitor their external attack surface. Using advanced reconnaissance techniques across web and mobile channels paired with high-signal, continuous security analysis, Assetnote gives enterprises insight and control of their evolving exposure.

From a single seed domain, the Assetnote Attack Surface Management Platform will discover the digital assets that make up your attack surface. The platform will then continuously analyze these assets and to map out contextual information including technologies, ports and services, SSL certificates, application screenshots and more. Each asset is monitored in real time for high signal, exploitable vulnerabilities and other security issues.

Assetnote was acquired by Searchlight Cyber in 2025.