Attack Surface Management (ASM) Software Tools

#1Compare

NetSPI Attack Surface Management

NetSPI Attack Surface Management is a current enterprise attack-surface solution combining External Attack Surface Management and Cyber Asset Attack Surface Management on the NetSPI Platform for external discovery and testing, internal asset intelligence, human validation, contextual risk prioritization, remediation workflows, and security-stack integrations.

83Strong pick

Pricing

Custom quote required for some paid plans
Quote required

Best for

Enterprise
Mid-market

#2Compare

IONIX Attack Surface Management

IONIX Attack Surface Management is a SaaS platform for continuous external discovery, evidence-backed attribution, digital supply-chain mapping, active exposure validation, attack-path context, and routed remediation workflows.

82Strong pick

Pricing

Custom quote required for some paid plans
Quote required

Best for

Enterprise
Mid-market

#3Compare

BitSight External Attack Surface Management

BitSight External Attack Surface Management is an agentless enterprise product for internet-asset discovery and attribution, external vulnerability and configuration visibility, risk prioritization, remediation tracking, integrations, and executive reporting.

81Consider

Pricing

Custom quote required for some paid plans
Quote required

Best for

Enterprise
Mid-market

#4Compare

Palo Alto Networks Cortex Xpanse

Cortex Xpanse is a cloud-based external attack surface management platform whose Expander application continuously discovers and attributes internet-facing assets, monitors exposures, scores risk, and supports investigation and remediation workflows.

81Consider

Pricing

Custom quote required for some paid plans
Asset-based pricing

Best for

Enterprise
External attack surface monitoring
Vulnerability risk prioritization

#5Compare

UpGuard Breach Risk

UpGuard Breach Risk, formerly called BreachSight, is an agentless SaaS product for first-party external asset discovery, daily domain and IP monitoring, vulnerability and configuration findings, security ratings, remediation workflows, and plan-dependent threat intelligence and integrations.

81Consider

Pricing

Paid · Self-service · 250 · per subscription · per month · Breach Risk Self-service, 0 to 99 employees, monthly · billed monthly · month-to-month · minimum 1 subscription · Organization has 0 to 99 employees and purchases the current Breach Risk Self-service monthly state
Paid · Self-service · 500 · per subscription · per month · Breach Risk Self-service, 100 to 999 employees, monthly · billed monthly · month-to-month · minimum 1 subscription · Organization has 100 to 999 employees and purchases the current Breach Risk Self-service monthly state
Custom quote required for some paid plans
Quote required

Best for

Mid-market
Enterprise
Small business

#6Compare

CrowdStrike Falcon Surface

CrowdStrike Falcon Surface is a cloud-delivered external attack surface management module that continuously maps internet-facing assets, attributes them to organizations and subsidiaries, prioritizes exposures with adversary and business context, and sends findings into remediation workflows.

80Consider

Pricing

Custom quote required for some paid plans
Quote required

Best for

Enterprise
Mid-market

#7Compare

Outpost24 EASM

Outpost24 EASM is a currently purchasable cloud-native external attack surface management product for agentless discovery of domains, IPs, cloud infrastructure, shadow IT, services, certificates, vulnerabilities, and configuration risks, with continuous change monitoring, risk scoring, remediation tracking, reporting, integrations, and optional separately priced threat-intelligence modules.

79Consider

Pricing

Custom quote required for some paid plans
Quote required

Best for

Enterprise
Mid-market

#8Compare

Microsoft Defender External Attack Surface Management

Microsoft Defender External Attack Surface Management is an Azure-hosted EASM product that recursively discovers internet-facing assets, maintains current and historical inventory, and surfaces vulnerability, compliance, certificate, port, and reputation observations.

75Consider

Pricing

Some paid plan amounts are unverified — check official pricing

Best for

Enterprise
Mid-market
External attack surface monitoring

#9Compare

Rapid7 Surface Command

Rapid7 Surface Command is a cloud attack-surface platform that combines seed-driven external discovery with connector-based internal asset and identity data, correlation, an asset graph, exposure prioritization, remediation workflows, and automation.

75Consider

Pricing

Custom quote required for some paid plans
Quote required

Best for

Enterprise
Mid-market

#10Compare

SecurityScorecard Attack Surface Intelligence

SecurityScorecard Attack Surface Intelligence is a SaaS search interface and API for querying SecurityScorecard's underlying threat-data lake across exposed IPs and ports, confirmed CVEs, attributed domains, cloud hosting, malware, leaked records, ransomware, malicious reputation, and threat actors.

69Watchlist

Pricing

Free plan available — see plan limits
Usage charges
Free plan — check scope

Best for

Enterprise
Mid-market