EASM: External Attack Surface Management in Cybersecurity
EASM stands for External Attack Surface Management. EASM focuses specifically on discovering and monitoring assets exposed to the internet from an outside-in perspective. EASM tools scan the public internet for an organization's domains, IPs, certificates, and cloud resources without requiring internal network access.
How EASM Is Used in Cybersecurity
Security teams run EASM scans to discover assets they did not know were publicly exposed. Threat intelligence analysts use EASM data to assess how an attacker would view the organization's external footprint. GRC analysts use EASM reports to verify that externally exposed systems comply with security policies and hardening standards.
Cybersecurity Roles That Work with EASM
Related Cybersecurity Acronyms
Frequently asked questions
What does EASM stand for?
EASM stands for External Attack Surface Management. EASM focuses specifically on discovering and monitoring assets exposed to the internet from an outside-in perspective. EASM tools scan the public internet for an organization's domains, IPs, certificates, and cloud resources without requiring internal network access.
What is EASM used for in cybersecurity?
Security teams run EASM scans to discover assets they did not know were publicly exposed. Threat intelligence analysts use EASM data to assess how an attacker would view the organization's external footprint. GRC analysts use EASM reports to verify that externally exposed systems comply with security policies and hardening standards.
Definitions are original explanations written for career development purposes. For authoritative technical definitions, refer to NIST, ISO, or the relevant standards body.