External Attack Surface Discovery

Map every internet-facing asset your organisation exposes before an attacker does. We perform deep subdomain enumeration, passive DNS analysis, port scanning, service fingerprinting, and shadow IT discovery across cloud providers and SaaS platforms. The result is a living inventory of your external risk surface — including assets your own teams may not know exist.

Our Approach to External Attack Surface Discovery

We begin with passive reconnaissance — harvesting subdomains, certificates, DNS records, and cloud asset metadata without touching your infrastructure. Then we move to active enumeration, systematically probing every discovered asset for exposed services, default credentials, and known vulnerabilities. Every finding is validated manually and mapped to your organisational context so you know exactly what is exposed and what it means for your business.

Why This Matters

Discover unknown subdomains, IPs, and cloud resources that expand your attack surface
Identify shadow IT and orphaned infrastructure before threat actors exploit them
Correlate certificate transparency logs with DNS records to reveal hidden services
Benchmark your external exposure against industry peers and best-practice baselines
Receive continuous monitoring recommendations to catch new assets as they appear
Prioritise remediation based on exploitability scoring, not just asset count

What You Receive

Comprehensive external asset inventory with ownership mapping
Subdomain and DNS enumeration results with risk classification
Port and service scan report with version fingerprinting
Shadow IT and cloud asset discovery findings
Certificate transparency analysis and expiry tracking
Risk-prioritised remediation roadmap
Executive summary with attack surface metrics
Re-test validation report after remediation

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