Mandiant Attack Surface Management vs Microsoft Defender EASM: 2026 Comparison

Mandiant Attack Surface Management

Mid-market and enterprise security teams need continuous visibility into internet-facing assets before attackers do, and Mandiant Attack Surface Management delivers automated discovery and monitoring at scale with multicloud integration that actually works. The tool maps your external footprint daily and flags exposures without requiring manual asset feeds, which is where most ASM tools fail in hybrid environments. Skip this if you're looking for remediation workflows or patch management; Mandiant finds the problem and hands it off to you.

Microsoft Defender EASM

Mid-market and enterprise security teams managing multiple cloud environments will get the most from Microsoft Defender EASM because it actually finds unmanaged assets and shadow IT that your teams don't know exist, then feeds that inventory directly into your existing Microsoft security stack. Its integration with Microsoft Defender for Cloud and Security Copilot means you're not bolting on another disconnected tool; discovery flows straight into your asset management and risk prioritization workflows. Skip this if your organization runs primarily on non-Microsoft infrastructure or lacks the Defender for Cloud footprint to make the integration pay off.