Best Know Your Attack Surface Alternatives ranked by AI · updated Aug 2026

Know Your Attack Surface is an online attack-surface-management service that helps organizations discover and monitor internet-facing assets. It is aimed at security teams that need visibility into exposed domains, hosts, services, and vulnerabilities.

Developer: Know Your Attack Surface Price: N/A 🎯 swordeye.io

Attack Surface Management Vulnerability Management cybersecurity asset discovery

Top 6 Know Your Attack Surface alternatives

Microsoft Defender External Attack Surface Management

Microsoft

💡 Pick it for enterprise-scale discovery tightly integrated with Microsoft security tools.

Microsoft Defender External Attack Surface Management maps an organization's internet-facing assets and highlights exposures for security teams. It is aimed at enterprises...

Pros

Strong integration with Microsoft Defender, Sentinel, and Azure workflows
Enterprise-grade asset discovery, exposure tracking, and reporting
Useful for organizations with existing Microsoft security investments

Cons

More expensive and complex than Chariot for smaller teams
Best value often requires broader Microsoft licensing
Can be less flexible for teams outside the Microsoft ecosystem

Custom pricing

Alternatives to Microsoft Defender... → Visit site

Censys Attack Surface Management

Censys

💡 Pick it for high-fidelity external asset intelligence and certificate-based discovery.

Censys Attack Surface Management uses internet intelligence to identify an organization's public-facing infrastructure, certificates, domains, and services. It suits security teams that...

Pros

Excellent internet-scale visibility into hosts, certificates, and services
Strong asset attribution and discovery of unknown infrastructure
Useful for security research and third-party exposure analysis

Cons

Commercial pricing can be difficult for small organizations
External visibility does not replace internal asset inventory
May require analyst validation for ownership and business context

Custom pricing

Alternatives to Censys Attack Surf... → Visit site

CyCognito

💡 Pick it when subsidiary discovery and business-context attribution are priorities.

CyCognito is an external attack surface management platform for enterprises that need to find unknown, internet-facing assets and assess their exposure. It...

Pros

Particularly strong at finding unknown and unmanaged external assets
Useful asset attribution helps connect infrastructure to business entities
Designed for continuous monitoring across complex enterprise estates

Cons

Does not match Neuron's breadth in penetration testing and compliance services
Limited value for teams primarily seeking internal vulnerability management
Advanced reporting and integrations are aimed at larger enterprises

Custom pricing

Alternatives to CyCognito → Visit site

Cortex Xpanse

Palo Alto Networks

💡 Pick it if your SOC already uses Palo Alto Networks and needs automated exposure monitoring.

Cortex Xpanse is an external attack surface management platform that continuously discovers internet-exposed assets and services. It is built for enterprise security...

Pros

Broad automated discovery of exposed infrastructure and services
Strong remediation workflows within the Palo Alto Networks ecosystem
Enterprise-scale monitoring and risk prioritization

Cons

Typically substantially more expensive than free or lightweight ASM tools
Best suited to organizations already invested in Palo Alto Networks
Can involve more platform complexity than Chariot

Custom pricing

Alternatives to Cortex Xpanse → Visit site

SecurityScorecard

💡 Pick it when external attack-surface data must support vendor and executive risk reporting.

SecurityScorecard is a cybersecurity rating and continuous risk monitoring platform.

Custom pricing based on company size and requirements.

Alternatives to SecurityScorecard → Visit site

runZero

💡 Pick it if you need broader internal and remote asset inventory alongside external exposure visibility.

runZero is a cyber asset management platform that discovers devices, software, and network relationships across on-premises, remote, and cloud environments. It is...