What is Microsoft Defender External Attack Surface Management?
In this era of hybrid work, shadow IT creates an increasingly serious security risk. Microsoft Defender External Attack Surface Management helps cloud security teams see unknown and unmanaged resources outside the firewall.
Get the Attack Surface Management (ASM) Buyer's Guide and find out what your peers are saying about Microsoft Defender External Attack Surface Management, CrowdStrike Falcon, Darktrace and more!
Microsoft Defender External Attack Surface Management is the #13 ranked solution in top Attack Surface Management (ASM) solutions and #33 ranked solution in top Microsoft Security Suite solutions. PeerSpot users give Microsoft Defender External Attack Surface Management an average rating of 7.6 out of 10. Microsoft Defender External Attack Surface Management is most commonly compared to CrowdStrike Falcon:
Microsoft Defender External Attack Surface Management vs CrowdStrike Falcon. Microsoft Defender External Attack Surface Management is popular among the large enterprise segment,
accounting for 58% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a
computer software company, accounting for 19% of all views.
As of August 2025, the mindshare of Microsoft Defender External Attack Surface Management in the Attack Surface Management (ASM) category
stands at 3.0%, up from 2.7% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Attack Surface Management (ASM)
Key learnings from peers
Valuable Features
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"It seems to be better at protecting from cyberattacks."
Room for Improvement
"The integration is not as seamless compared to competitors like Palo Alto."
"Further integration across different Microsoft products would be an improvement."
"With Microsoft, support is always crazy, it's not easy to get support."
These insights are based on the in-depth reviews provided by peers to help you make a better buying decision.
