External attack surface (EASM)

How it works

External attack surface management discovers and tracks your internet-facing assets from the outside in, the way an attacker would, then flags risks like forgotten subdomains, expired certificates, exposed admin panels, and domains impersonating you. The goal is to see your brand and infrastructure the way the rest of the internet does, including the parts you forgot you had.

Impersonating domains and fake profiles are part of that surface, even though you do not own them.

How it relates to brand impersonation

Lookalike domains and fake profiles expand the surface attackers can use against your brand. Treating impersonation as part of the external attack surface keeps detection and removal in one view.

How nebty helps

nebty covers the impersonation slice of the external attack surface, the lookalike domains, fake profiles, and abuse, and removes what it finds on demand. See our brand impersonation protection overview.

Where impersonation fits in

External attack surface management maps everything an attacker can see from outside: your domains and subdomains, exposed services and ports, certificates, cloud assets, and the forgotten infrastructure teams lose track of. Most EASM tools focus on assets you own, and finding a dangling subdomain or an exposed admin panel is squarely their job. Impersonation sits at the edge of this picture and is often missed, because a lookalike domain or a fake profile is not your asset, yet it is part of how the outside world can attack through your identity. Treating impersonation as part of the surface keeps it from falling between teams: the same outside-in view that catches your exposed assets should also catch the fakes trading on your name. nebty covers that impersonation slice and removes what it finds.