Hadrian Agentic AI vs Microsoft Defender EASM: Side-by-Side Comparison (2026)

Hadrian Agentic AI: AI-powered platform for continuous attack surface discovery and pentesting. built by Hadrian. Core capabilities include Continuous automated asset discovery for domains, subdomains, certificates, and IPs, Shadow asset identification, Agentic AI-powered penetration testing emulating real-world exploits..

Microsoft Defender EASM: Discovers and monitors external-facing assets and vulnerabilities. built by Microsoft. Core capabilities include Real-time inventory monitoring of external-facing resources, Discovery of unmanaged resources and shadow IT, Multi-cloud and hybrid environment visibility..

Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.

Hadrian Agentic AI differentiates with Continuous automated asset discovery for domains, subdomains, certificates, and IPs, Shadow asset identification, Agentic AI-powered penetration testing emulating real-world exploits. Microsoft Defender EASM differentiates with Real-time inventory monitoring of external-facing resources, Discovery of unmanaged resources and shadow IT, Multi-cloud and hybrid environment visibility.

Hadrian Agentic AI is developed by Hadrian. Microsoft Defender EASM is developed by Microsoft. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Hadrian Agentic AI and Microsoft Defender EASM serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools. Review the feature comparison above to determine which fits your requirements.