Purpose: ASM continuously measures an organization’s external attack surface from the outside in.
Internet coverage: Censys maps the global internet across all 65,000 ports.
Asset discovery: First-party scanning discovers exposed assets including services on nonstandard ports, hosts with self-signed certificates, and hosts in residential networks.
Monitoring: ASM continuously monitors for changes such as new hosts, ports, certificates, and services, and can alert on meaningful changes.
Risk coverage: ASM detects more than 700 exposures and misconfigurations and over 7,000 vulnerabilities; risk types can be enabled, disabled, and assigned severity levels.
Prioritization: The product’s exposure monitoring includes EPSS, KEV, and other vulnerability risk scoring mechanisms.
Remediation: ASM can integrate with ticketing, vulnerability management, and security tools to create, route, and track remediation tasks.
Integrations: Listed ASM integrations include AWS, Azure, Google Cloud, Microsoft Sentinel, ServiceNow, Slack, Jira, Tenable, Qualys, and Swimlane.
Reporting: ASM provides executive and audit-friendly views of exposure trends and remediation progress.
Security and compliance: Censys’s Trust Center lists a SOC 2 Type II report and UK Cyber Essentials certification.
Pricing basis: Censys says ASM pricing and packaging use Assets Under Management (AUM), and the AUM count on a quote is lower than the Attack Surface Size metric.
Who it is for: Censys describes the product as helping security organizations protect internet-facing infrastructure.
Company history: Censys Inc. was founded in 2017, and Censys ASM launched in 2020.
Founded: 2017

Where it ranks on Freedom251

Best Security Ratings Software in 2026#14 of 29
Best Attack Surface Management Software in 2026#6 of 28

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Sources

censys.com/solutions/external-exposure-management· checked 3 Oct 2026
docs.censys.com/docs/asm-configure-risks· checked 3 Oct 2026
censys.com/resources/integrations· checked 3 Oct 2026
trust.censys.com· checked 3 Oct 2026
docs.censys.com/docs/asm-metrics· checked 3 Oct 2026
censys.com/about-censys/· checked 3 Oct 2026
censys.com/careers/· checked 3 Oct 2026
censys.com/resources/pricing· checked 3 Oct 2026