External attack-surface testing
Assess internet-facing systems through vulnerability scanning and controlled exploitation attempts designed to reveal real exposure.
ACS provides external penetration testing for authorized internet-facing systems. Every engagement includes vulnerability scanning, controlled exploitation, password spraying, and an Active Directory password audit, with timing, access, and safe-testing windows planned before testing begins.

Assess internet-facing systems through vulnerability scanning and controlled exploitation attempts designed to reveal real exposure.
Evaluate externally reachable authentication paths such as VPN or email through controlled password-spraying activity in the test plan.
Receive executive and technical findings reports with severity, evidence, affected assets, potential business impact, remediation guidance, and recommended next steps.
Asset lists and diagrams can miss how systems appear from the internet; controlled external testing validates what is actually exposed.
Penetration testing adds controlled exploitation attempts to validate whether identified vulnerabilities could create unwanted access or business disruption.
Password spraying against planned access points can uncover weak credential practices, exposed authentication surfaces, and account-protection gaps.
Useful reports translate testing activity into prioritized observations and recommendations that leaders and technical teams can use for remediation planning.
Confirm external targets, testing windows, approved accounts, emergency contacts, technical points of contact, testing boundaries, and systems that should stay outside the engagement.
Scan external assets to identify potential vulnerabilities, exposed services, weak configurations, and attack paths that may warrant deeper validation.
Attempt controlled exploitation of identified vulnerabilities to validate technical impact, affected assets, likely business risk, and whether a finding represents more than a scanner result.
Test authentication surfaces such as VPN or email with controlled password-spraying activity to surface identity-based exposure, rate limits, and safety controls.
Conduct Active Directory password audits using the access and tools required for the engagement.
Understand how internet-facing systems and services may appear from outside the organization across the test plan.
Move beyond a vulnerability list by testing whether priority findings can be exploited, what identity or access path they may expose, and what business impact they may create.
Assess password-spraying exposure for VPN, email, or other external authentication points in the test plan.
Use executive and technical reporting to align risk owners, affected assets, evidence, remediation guidance, next-step discussions, and follow-up planning.
ACS can plan and execute an external penetration test that validates exposure, credential risk, access paths, and prioritized findings for the systems your organization wants tested.
