Attack Surface
Mapping

Find out what's exposed before a threat actor does. We map every internet-facing asset you own — including the ones you've forgotten about — and deliver a prioritised, actionable picture of your external risk.

Comprehensive Asset Inventory
Full Scope External Discovery
Prioritised Risk Scoring
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Fixed-scope pricing · Confidential engagement

Discovery

What We Discover

Your external attack surface is everything an attacker can reach from the internet — and it's almost certainly larger than you think. Shadow IT, forgotten staging environments, misconfigured cloud buckets, and dangling DNS records all count. We systematically find and inventory every internet-facing asset tied to your organisation.

  • Domains, subdomains, and DNS records — including forgotten or misconfigured entries
  • IP ranges and exposed hosts — both owned and cloud-hosted infrastructure
  • Cloud assets — S3 buckets, Azure blobs, GCP storage, serverless endpoints, container registries
  • Exposed services and open ports — web servers, databases, admin panels, remote access services
  • SSL/TLS certificates — expiry monitoring, weak configurations, certificate transparency logs
  • Third-party integrations — SaaS connections, API endpoints, embedded services
  • Shadow IT — unauthorised cloud instances, forgotten dev/staging environments, employee-provisioned services
  • DNS misconfigurations — dangling CNAMEs, subdomain takeover vulnerabilities, SPF/DKIM/DMARC gaps
Enumeration

Active Enumeration

Discovery is only as good as the techniques behind it. We combine active scanning with passive intelligence sources — certificate transparency logs, Shodan, DNS analysis, and OSINT — to build the most complete picture of your external footprint possible within the engagement.

  • Multi-source discovery — active scanning combined with passive OSINT, Shodan, and certificate transparency logs
  • Service fingerprinting — technologies, versions, and configurations across all exposed assets
  • Configuration analysis — TLS settings, DNS records, SPF/DKIM/DMARC, and exposed admin interfaces
  • Cross-validation — findings verified across multiple data sources to eliminate false positives
  • Shadow IT identification — assets deployed outside IT oversight, forgotten staging environments
  • Certificate status — expired, expiring, and weakly configured certificates across your estate
Prioritisation

Risk Prioritisation

Finding everything is step one. Knowing what to fix first is what actually moves the needle. We score every discovered asset across severity, exploitability, and business impact so your team isn't chasing noise.

CVSS-Aligned Severity

Vulnerability scoring consistent with industry standards, so findings slot straight into existing vulnerability management workflows.

Business Context Weighting

Critical assets scored higher based on data sensitivity and operational impact.

Exploitability Assessment

Not just "it's exposed" but "how hard is it actually to exploit in practice."

Trending Analysis

Tracking whether your attack surface is growing, shrinking, or shifting over time.

Integration

Workflow Integration

Attack surface data sitting in a separate dashboard doesn't help much. We make sure findings feed into your existing security operations.

  • Feeds directly into penetration testing scope — ensuring testers cover your full external footprint
  • Supports compliance audits — documented evidence of external attack surface assessment for ISO 27001, SOC 2, PCI DSS
  • Vulnerability management pipeline — discovered exposures feed into your patching and remediation workflows
  • Board-level reporting — executive dashboards showing attack surface trends and risk posture over time
Core Capabilities

Complete Visibility of Your
External Attack Surface

Systematic discovery and enumeration across your internet-facing infrastructure — using tools like Amass, Shodan, and certificate transparency log analysis.

Asset Discovery & Enumeration

We find all your internet-facing assets — domains, subdomains, IPs, cloud resources, exposed services — and build a current inventory of your external footprint. Most organisations find assets here they didn't know existed.

Cloud Exposure Detection

Misconfigured cloud storage, exposed databases, open container registries, publicly accessible serverless endpoints — we find them across AWS, Azure, and GCP before someone else does.

Configuration & Certificate Analysis

Beyond just finding what's exposed — we analyse how it's configured. TLS weaknesses, DNS misconfigurations, expired certificates, exposed admin panels, and misconfigured cloud permissions all get flagged and scored.

Risk Scoring & Prioritisation

Every discovered asset scored by severity, exploitability, and business impact — so your team focuses remediation effort on the exposures that matter most.

Process

How Attack Surface Mapping Works

From initial discovery to risk-scored deliverable — full visibility of your external exposure.

1

Discovery & Baseline

We run a full initial discovery of your external attack surface — domains, subdomains, cloud assets, exposed services, certificates, and third-party integrations. This establishes your baseline inventory and flags immediate risks. You'll typically see initial results within 48–72 hours.

2

Active Enumeration & Validation

We run systematic enumeration across all discovered assets — fingerprinting services, analysing configurations, checking certificates, and cross-referencing findings across multiple data sources. Everything is validated before it goes into the report, so you're not chasing false positives.

3

Risk Reporting & Remediation Guidance

Regular reports give you a clear picture of where your attack surface stands — trending analysis, new discoveries, resolved issues, and outstanding risks. Each finding includes prioritised remediation guidance. Reports come in both technical and executive formats.

Frequently Asked Questions

Common Questions

What's the difference between attack surface mapping and a penetration test?
Attack surface mapping tells you what's exposed. Penetration testing tells you what's exploitable. ASM gives you the map; a pen test proves the risk. They work well together — we recommend running both, using the ASM output to define the pen test scope.
How quickly will we see results?
Initial discovery typically completes within 48–72 hours, depending on the size of your digital footprint. Full enumeration, validation, and risk scoring are completed before the final report is delivered.
Do you scan internal assets?
No — this service is focused entirely on your external attack surface, everything reachable from the internet. Internal network testing, Active Directory, and lateral movement paths fall under our penetration testing service.
Will scanning affect our systems?
Scanning is lightweight and non-intrusive. We use passive techniques — certificate transparency logs, DNS enumeration, public data sources — combined with low-impact active scanning that won't affect performance or set off false alarms in your monitoring stack.
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Take Action

Know Your Attack Surface Before Attackers Do

You can't protect what you can't see. Contact us for a confidential attack surface assessment.

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