External Attack Surface Management

Monitor every exposed asset before adversaries do

ExternalScan helps security teams map, monitor, and secure their Internet-facing infrastructure with continuous discovery, contextual risk scoring, and analyst-backed validation.

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  • Continuous asset discovery across DNS, cloud, and shadow IT.
  • Prioritized vulnerabilities with contextual risk scoring.
  • Human analysts validate every high-impact finding.
Assets monitored daily
120k+

Across DNS, cloud, and Internet-facing services.

Connectors available
45+

DNS, cloud, ticketing, and collaboration ecosystems.

Average detection time
<15 min

From exposure to alert across monitored assets.

ExternalScan EASM dashboard

Capabilities

An EASM suite built for modern security teams

Cover the entire lifecycle from discovery to remediation with a unified control plane that keeps every stakeholder aligned.

Asset Discovery

Automatically index every domain, IP, certificate, and service exposed on the Internet.

  • DNS zone ingestion, SSL/TLS analysis, and passive DNS enrichment.
  • Cloud-native discovery for AWS, Azure, GCP, and SaaS.

Risk Prioritization

Understand which exposures represent real risk thanks to contextual scoring enriched with business impact.

  • CVSS, exploitability, and business sensitivity rolled into one score.
  • Analyst notes and remediation paths surfaced for every critical issue.

Continuous Monitoring

Keep watch on changes in your perimeter with differential scanning and proactive alerting.

  • Daily baseline scans with drift detection.
  • Instant notifications when new services or vulnerabilities appear.

Collaboration & Integrations

Bring ExternalScan insights into the tools your teams already use.

  • Push tickets automatically to ServiceNow, Jira, and Trello.
  • Bidirectional messaging with Slack, Teams, and email.

Executive Reporting

Share progress and trends with leadership using real-time dashboards and scheduled digests.

  • Customizable executive dashboards and PDF exports.
  • Program health metrics ready for board and regulator reviews.
Asset inventory feature

Discover

Full-spectrum external asset inventory

Build a living catalog of every domain, subdomain, certificate, and service exposed on the Internet. ExternalScan consolidates authoritative DNS, certificate transparency, and open-source intelligence to eliminate blind spots.
  • Agentless discovery across DNS, cloud accounts, and shadow IT.
  • Automatic service fingerprinting with port, protocol, and technology detection.
  • Real-time tagging to group assets by business unit or sensitivity.

Inventory updates stream into the platform in near real-time so teams always see the latest exposure.

Prioritize

Risk scoring backed by analyst validation

Combine automated security testing with human expertise to highlight what truly matters. Each exposure is enriched with exploit intelligence, business context, and remediation guidance before it reaches your queue.
  • Hybrid automated and manual verification for high-impact exposures.
  • Context-aware scoring aligned with CVSS, EPSS, and exploit data.
  • Root-cause insights and recommended next actions for every issue.

Security analysts validate critical findings to cut through alert fatigue.

Risk scoring feature
Workflow automation feature

Respond

Automated workflows that close the loop

Connect ExternalScan to your ticketing, messaging, and SIEM stack to orchestrate remediation without friction. Track ownership, deadlines, and validation from a single command center.
  • Native integrations with Slack, Teams, Jira, ServiceNow, and PagerDuty.
  • Change timelines that capture acknowledgement, fix, and retest events.
  • Role-based access controls with full audit trails.

Orchestrate remediation with automated playbooks or export findings to your SOAR platform.

Operating model

How ExternalScan keeps your perimeter safe

Adopt a repeatable playbook that removes blind spots, accelerates remediation, and proves control to stakeholders.

01

Discover everything automatically

Map the perimeter

We continuously ingest DNS, cloud, certificate, and web intelligence to build a unified inventory of Internet-facing assets.

  • Agentless discovery refreshes whenever your infrastructure changes.
  • Shadow IT is surfaced through passive and active reconnaissance.
02

Validate and prioritize risk

Know what matters

Automated checks and security analysts validate exposures, enrich them with business context, and rank them by impact.

  • Exploit intelligence and severity scoring combined in one signal.
  • Business tags highlight accountable owners instantly.
03

Orchestrate remediation

Act with confidence

Route findings to the right teams, track progress, and confirm resolution with retests and continuous monitoring.

  • Automated ticketing and messaging integrations.
  • Retest windows verify fixes and guard against regressions.

Use cases

Flexible for every security mission

Security, risk, and product teams use ExternalScan to illuminate their attack surface and respond faster.

Attack surface assessment

Know what is exposed

Produce a complete inventory of web, cloud, and network assets with severity-ranked exposures ready for compliance or M&A reviews.

Exposure

Continuous vulnerability monitoring

Stay ahead of attackers

Detect configuration drift, leaked services, and high-risk vulnerabilities minutes after they appear on the Internet.

Monitoring

Executive reporting & compliance

Prove control

Share digestible reports with leadership and regulators, showing trends, ownership, and remediation progress over time.

Reporting

Need answers?

Frequently asked questions

Everything you need to know before rolling out ExternalScan across your organization.

Most customers complete their initial perimeter discovery within the first day. ExternalScan ingests DNS zones, certificates, cloud metadata, and open-source intelligence to populate an inventory automatically, with analysts refining blind spots alongside you.

We combine proprietary scanning infrastructure with trusted data sources such as certificate transparency, passive DNS, ASN enumeration, and curated OSINT feeds. Customers can also connect cloud accounts and upload seed assets securely.

Yes. Automated detections are triaged by ExternalScan analysts who validate exploitability, add business context, and recommend remediation steps for high-impact issues before alerts are released.

ExternalScan offers native connectors for Slack, Teams, Jira, ServiceNow, and email. A robust REST API and webhook system let you pipe findings into SIEM, SOAR, or data warehouses to match your processes.

We provide a guided proof of concept for qualified teams. Sign up to start mapping your perimeter immediately, then upgrade when you are ready for enterprise-scale automation.
Start today

Ready to see your entire external attack surface?

Launch ExternalScan now or schedule a guided tour with our security team to explore continuous discovery, validation, and remediation workflows tailored to you.

Talk to an EASM expert