Penetration Testing
(United States only)
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Validate your defenses. Expose what’s actually at risk.
Vulnerability scans tell you what’s present. Pen testing tells you what’s exploitable. GTT Penetration Testing delivers real-world testing and attack simulations for US-based organizations, giving you objective proof of where controls and defenses work as intended and where they do not.
Why routine reviews aren’t enough
Technology environments and activities are dynamic. Every new user, system upgrade or access point becomes a fresh opportunity for attackers. Automated tools may catch known signatures, but they’ll miss the logic flaws and chained vulnerabilities as well as unintentional user errors that skilled adversaries are exploiting.
And the reality is that internal teams rarely catch what they built. Organizational demands on IT for speed of change or deployment introduce vulnerability and control flaws. That’s not a criticism; it’s just how proximity works. When your own people review your own environment, blind spots persist…something attackers are counting on.
What GTT pen testing does
Our security specialists approach your environment the way a real attacker would. They employ the same tactics and same techniques, without warning and without any assumptions carried over from your internal documentation.
Testing provides a clear, ranked picture of exploitable paths and what they could cost your business, not just financially but in operational impact. Every finding maps to practical next steps on how to close the gaps.
This is a US-only offered service.
Business outcomes that matter
Testing is only useful if it drives decisions. Here’s where organizations see direct value:
Expose real (not theoretical) risk
Identify paths an attacker could actually follow to reach sensitive data or disrupt operations. See the exposure in business terms, not just CVSS scores.
Verify your controls work
Security tools are only as good as their configuration. Test whether your defenses block the tactics adversaries use in practice, under realistic conditions.
Focus remediation where it counts
Not every threat deserves equal urgency. Get a risk-ranked action plan so your team addresses what matters most first.
Give leadership what it needs to act
Security findings translated into business impacts make smarter budget conversations possible. Technical gaps become clear decisions.
Ideal use cases for penetration testing
Penetration testing delivers critical value during key business transitions.
Securing hybrid work environments
Verify that remote users and varied device access points do not compromise your network.
Validating major system upgrades
Ensure new infrastructure integrations do not introduce fresh attack vectors.
Expanding operations
Assess your security posture as you open new US locations or add new network endpoints.
How it works
1
Design
Our team works closely with you to define the penetration testing approach, including the testing model, in-scope assets and IP count, exclusions, and the overall execution timeline. This stage ensures alignment on objectives, scope and expectations before testing begins.
2
Deployment
Once access is coordinated, the agreed-upon penetration testing activities are executed.
3
Support and Optimization
Post-testing, a comprehensive executive summary presentation and a full technical report are delivered. This will include MITRE ATT&CK–mapped findings and prioritized remediation recommendations. Results are reviewed directly with you and our team provides recommendations for remediation planning and continuous security improvement.
Why GTT Pen Testing
For decades, GTT has secured and connected enterprise networks at scale. Pen testing is inherently more valuable when the people conducting it have no stake in validating your existing assumptions. Our independent certified security specialists combine that with direct experience in the attack scenarios that affect enterprise environments today.
Our Gartner rating
Test before someone else does
Most organizations schedule a pen test after an incident or a compliance deadline. But the organizations that get more value schedule it before this happens. Real feedback—fixed before a breach occurs—is a different outcome entirely.
Talk to GTT about making independent penetration testing a standard part of your security program.