External attackers probe your internet-facing perimeter first. Public IPs, web applications, VPN gateways, email systems, and exposed services form the attack surface that adversaries use to gain initial access. Misconfigurations, unpatched software, weak credentials, or exposed management interfaces can allow attackers to breach your defenses and pivot inside.
Our External Penetration Testing service simulates real-world attacks from the public internet to identify and validate exploitable issues in your perimeter, and to measure how visible and resilient your external footprint is today.
Asset Discovery
Web Application Testing
Perimeter & Firewall Testing
VPN & Remote Access
Email & Mail Gateways
Vulnerability Scanning
Credential & Authentication Testing
Monitoring & Detection
Confirm scope (IP ranges, domains, excluded hosts), testing windows, and success/stop criteria. Agree on communication and emergency contacts.
Map public assets, enumerate subdomains, harvest technologies and service fingerprints to build an accurate external attack surface.
Combine automated scanning and manual verification to identify misconfigurations, missing patches, and high-risk service exposures.
Safely exploit validated findings to prove impact (web app exploits, exposed services, auth bypasses) while avoiding disruption to production.
Show likely attacker follow-on steps such as credential harvesting, pivot suggestions, and potential data-access paths without carrying out destructive actions.
Deliver a prioritized report with executive summary, technical findings and PoCs, risk ratings mapped to business impact, and clear remediation steps. Present results in a restitution meeting.
Verify that fixes are effective and no new issues were introduced.
External testing reveals how visible and vulnerable you are to attackers on the internet today. It finds exploitable weaknesses in public-facing systems before they become incidents.
Typical timelines by scope:
Credentialed testing, complex web apps, or WAF tuning can extend timelines.
Testing is planned to be safe and non-destructive. We coordinate intrusive steps with your team, define stop criteria, and avoid destructive payloads unless explicitly authorized.
