External Network Penetration Testing
Your perimeter is whatever the internet can see, including the assets you forgot you owned. We enumerate it the way an attacker does (reconnaissance, exposure discovery, and exploitation) and show you exactly where the outside becomes the inside.
What you walk away with
- Full external attack-surface discovery, including shadow assets
- Validated exploitation, not unconfirmed scanner noise
- Clear prioritisation by real exploitability and impact
Reconnaissance first
We begin where attackers begin: open-source intelligence, certificate transparency, and infrastructure mapping to build a picture of your true external footprint. Forgotten subdomains, staging environments, and third-party exposure routinely surface here before a single exploit is attempted.
What we test
- External asset discovery and shadow-IT identification
- Exposed services, default credentials, and misconfigurations
- Known-vulnerability exploitation with confirmed impact
- Web and VPN gateway, and remote-access exposure
- Email, DNS, and infrastructure security hygiene
- Credential exposure from public breaches and leaks
What you receive
Attack-surface inventory
Every internet-facing asset we found.
Technical findings
Exploited paths with reproduction and evidence.
Remediation playbook
Prioritised perimeter hardening.
Retest & attestation
Verification and shareable attestation.
Related services
Internal Network Penetration Testing
Assume-breach testing from inside the perimeter: lateral movement, privilege escalation, and data reach.
Explore service IdentityActive Directory Assessment
Targeted assessment of the identity backbone attackers love most, Kerberos, delegation, and AD trust abuse.
Explore serviceReady to test your network security?
Adversary-grade testing of your internet-facing perimeter, from OSINT to exploited foothold.