Best NetSPI External Attack Surface Management (EASM) Alternatives & Competitors in 2026

Outpost24 External Attack Surface Management

Cloud platform for continuous visibility & mgmt of external attack surfaces

QuimeraX External Attack Surface Management

EASM platform for continuous monitoring of internet-exposed assets & vulnerabilities

Cytrusst Cyber Attack Surface Management

Attack surface management platform with dark web & brand monitoring capabilities

DarknetSearch Attack Surface Discovery

Attack surface discovery platform monitoring digital assets and data exposures

Orpheus External Attack Surface Management

EASM platform with continuous asset discovery and threat intelligence context

CyCraft XCockpit EASM

External attack surface management platform with AI-powered risk assessment

Aleph Search Clear

OSINT tool for mapping & monitoring risk ecosystems on Clear & Deep Web.

Coinnect EASM Platform

EASM platform for continuous external attack surface discovery and risk mgmt.

ImmuniWeb® Discovery

ImmuniWeb Discovery is an attack surface management platform that continuously monitors an organization's external digital assets for security vulnerabilities, misconfigurations, and threats across domains, applications, cloud resources, and the dark web.

Halo Security Attack Surface Management

External attack surface mgmt platform for discovering & monitoring assets

Guardz External Footprint

External attack surface monitoring with dark web intelligence and scanning

UpGuard Breach Risk

External attack surface monitoring with threat intel and brand protection

ExposeLens

Domain exposure monitoring tool for leaked creds, subdomains & dark web data.

Censys Internet Map

Internet intelligence platform for asset discovery and attack surface mapping

RiskXchange Attack Surface Management

Attack surface management platform for monitoring vulnerabilities and breaches

Censys Internet Intelligence Platform

Internet intelligence platform for asset discovery and threat analysis

Axur Unified EASM + CTI

EASM platform with integrated CTI for asset discovery and vulnerability mgmt

SecurityScorecard Attack Surface Intelligence

Attack surface intelligence platform for threat hunting and asset discovery

ConnectSecure Attack Surface Scanning

External attack surface scanning for MSPs to identify vulnerabilities

Salience xASM

xASM platform covering external, internal, and API attack surfaces.

Muscope|Risk - Attack Perimeter

Maps external attack surface including assets, dark web exposure, and leaks.

TRaViS

AI-enhanced EASM platform for external attack surface discovery and monitoring.

Assetnote Attack Surface Management Tool

ASM platform that scans external attack surfaces hourly for vulnerabilities

Cyber Exposure Manager

Cyber Exposure Manager: continuous visibility and remediation for external risk

Hadrian Agentic AI

AI-powered platform for continuous attack surface discovery and pentesting

Microsoft Defender EASM

Discovers and monitors external-facing assets and vulnerabilities

Assetnote ASM

External attack surface management platform with continuous asset discovery

Risksurface

SaaS platform for attack surface management and vulnerability detection

Zerofox External Attack Surface Management

Discovers and manages internet-facing assets with vulnerability prioritization

Synack Attack Surface Discovery

External attack surface mgmt with asset discovery and on-demand pentesting

Censys AI-Driven Solutions

AI-driven internet scanning platform for asset discovery and threat hunting

Team Cymru RADAR

Passive asset discovery platform using Netflow data for attack surface mapping

Akamai DNS Posture Management

DNS security posture management across multicloud and on-prem environments

Anomali Attack Surface Management

External attack surface management platform for asset discovery and vuln mgmt

CyberXTron ShadowSpot

External attack surface management platform for asset discovery and risk detection

ThreatMon Attack Surface Intelligence

Attack surface management platform for asset discovery and vulnerability monitoring

Intel 471 Cyber Threat Exposure

CTI-driven external attack surface mgmt with threat exposure prioritization

Outpost24 CyberFlex

EASM platform combined with PTaaS for web app discovery and testing

Check Point Attack Surface Management

Continuously maps digital footprint, identifies exposures & validates exploitability

Dreamlab CyObs

Real-time attack surface monitoring and vulnerability management platform

TacitRed Tactical Attack Surface Intelligence

EASM platform providing curated threat intelligence for external attack surfaces

Humanize Security Salience

xASM and cyber risk quantification platform with continuous monitoring.

KYND

Cyber risk mgmt platform for external scanning, monitoring & exposure mgmt.

KYND Attack Surface Management

External attack surface mgmt with CVE scanning & continuous monitoring.

LocateRisk

Non-invasive IT risk analysis & third-party cyber risk monitoring platform.

Attaxion

Agentless EASM platform for asset discovery, exposure mgmt & risk reduction.

Assetnote Exposure Engine

Continuous exposure detection & verification engine for attack surface mgmt.

StrikeOne Attack Surfa

AI-powered attack surface management platform for cybersecurity monitoring