Network Penetration Testing

Find exploitable gaps before attackers do.

Expose hidden network risk with penetration testing guided by cybersecurity-first managed IT experience.

Reduce audit stress with findings mapped to practical remediation and insurance-driven security needs.

Minimize disruption through controlled testing planned around your users, systems, and business hours.

Turn technical findings into action with documented priorities your leadership team can understand.

Strengthen security planning with an ITIL-aligned team that has served organizations since 2010.

Request a Quote for our Network Penetration Testing

Trusted By

Partner-Clients Who Value Secure, Quiet IT

Long-term relationships built on responsiveness, documentation, and mutual accountability.

When we founded our firm back in 2008, GroupOne was our first professional relationship. As we have grown, GroupOne has demonstrated an understanding of our size, limitations, and unique business requirements. Their team meticulously analyzed our existing systems and implemented tailored solutions that streamlined our IT operations. Our partnership with GroupOne IT has been instrumental in our growth and stability. Their unwavering dedication to client satisfaction, coupled with their fast, thorough, and comprehensive service, has elevated our operational capabilities and positioned us for continued success in the dynamic landscape of financial advisory services. We wholeheartedly recommend GroupOne IT to any organization seeking reliable and proactive IT support tailored to their specific needs.

Daniel Andersen

Co-founder, CFP, Parkshore Wealth Management

GroupOne truly feels like family to us. They’re a trusted partner with deep expertise right in our backyard. From designing complex, redundant networks to helping us work through everyday IT questions, they’ve been there whenever we needed them. I appreciate that I can speak directly with their engineers or even their CEO, Chris and always feel respected and understood. Their team is highly trained, experienced, and committed to doing things the right way. Knowing GroupOne is monitoring our systems, securing our backups, and keeping us protected around the clock gives me complete peace of mind.

Andrew Riordon

IT Director, Adams Group

GroupOne IT has been an outstanding partner. They implemented our technology road map and coordinated everything to ensure we have a resilient and stable network. GroupOne exceeded our expectations during the onboarding process, which we knew would be challenging. They were well-prepared to address our concerns and back-end issues during the transition process. Their commitment to providing excellent service reduced stress for me and my whole team. They helped me make smarter budgeting decisions, resulting in lower overhead costs and less headaches. We value our relationship with GroupOne and look forward to a long and fruitful partnership with them.

Spencer Johnson

Director of Facilities & IT, Peach Tree Health

GroupOne truly understands the challenges we face as an engineering firm. We’ve partnered with them for over 14 years, and they’ve consistently kept us ahead of emerging technologies, advising us well in advance on the changes we need to make. When a client required cybersecurity as part of our insurance coverage, GroupOne immediately knew exactly what to do and implemented it quickly. That capability has had a major impact on our business and helped us secure new clients. I would highly recommend GroupOne, especially to engineering firms because they genuinely understand our needs and deliver exceptional service.

Jay Singh

President, RSC Engineering

From Hidden Network Risk to a Clear Remediation Roadmap

Responsive IT Support Turns One Technical Issue Into Three Resolved Problems

Prompt, patient support helped a customer resolve multiple issues and gain lasting confidence.

Resilient IT Systems Help a Community Health Provider Stay Focused on Care

Peach Tree Health needed dependable IT support to manage a complex rollout and stabilize its network across multiple clinics. GroupOne IT delivered a resilient infrastructure, smooth onboarding, and practical budget guidance that helped the organization reduce strain and keep care delivery running smoothly.

Tailored IT Support Helps a Wealth Management Firm Scale Confidently

Parkshore Wealth Management needed IT support that aligned with its growth plans and regulatory environment. GroupOne IT delivered customized improvements and responsive service that strengthened day-to-day operations and supported expansion without adding complexity.

Unified Device Management Streamlines Operations at Golden Harvest Foods

Golden Harvest Foods needed a simpler way to manage devices across Mac and Windows systems as operations expanded. GroupOne IT implemented Microsoft Intune to centralize device management, reduce complexity, and improve efficiency across daily IT operations.

Proactive IT Guidance Helps an Engineering Firm Win New Business

RSC Engineering needed an IT partner that anticipated technology changes and acted quickly when new cybersecurity requirements emerged. GroupOne IT delivered proactive guidance and rapid implementation that helped the firm meet client and insurance demands while supporting continued growth.

Awards & Certifications

Detailed Network Penetration Testing Services

Practical testing with actionable remediation

External Testing

Validate public exposure

External penetration testing evaluates internet-facing systems such as firewalls, VPNs, remote access services, and public-facing infrastructure. The focus is on finding weaknesses that could allow unauthorized access, data exposure, or service disruption.

You receive validated findings, risk context, and practical next steps. This helps leadership prioritize security investments based on real exposure rather than assumption.

Internal Testing

Limit lateral movement risk

Internal penetration testing looks at what could happen if an attacker gains a foothold through a compromised device, stolen credential, or exposed system. Testing examines access paths, segmentation, privilege boundaries, and opportunities for lateral movement.

The result is a clearer view of how well your network limits damage. Findings support better access control, stronger documentation, and smarter remediation planning.

Wireless Review

Secure wireless access points

Wireless environments often create overlooked entry points into business systems. Testing reviews wireless security configuration, authentication practices, guest access separation, and potential exposure from weak or misconfigured networks.

GroupOne IT helps connect wireless findings to operational risk, so your team can protect productivity while reducing unnecessary access. Recommendations are written for action, not technical overwhelm.

Firewall Validation

Confirm controls are working

Firewall and network segmentation testing validates whether your controls are doing what leadership expects them to do. Rules, access paths, exposed services, and separation between critical systems are reviewed for weaknesses that could increase business impact during an attack.

You get specific findings that help reduce risk, clean up unnecessary exposure, and strengthen the reliability of your network security architecture.

Exploit Verification

Prioritize real exploit risk

Not every vulnerability carries the same level of business risk. Exploit verification helps separate theoretical issues from weaknesses that can actually be used in your environment. This creates better prioritization and reduces wasted remediation effort.

Testing is performed in a controlled manner with attention to minimizing impact on productivity. The final report explains what was validated, why it matters, and what should happen next.

Remediation Roadmap

Make remediation actionable

A penetration test should end with a roadmap your team can use. GroupOne IT provides reporting that connects technical findings to business impact, remediation priorities, and cybersecurity requirements that may affect insurance or compliance conversations.

Instead of handing over a generic report, the process supports action: what to fix first, what to monitor, what to budget for, and how to reduce future operational stress.

Our Elite Partners

Measured Security Insight for Better Business Decisions

30 day

Average Onboarding Time

17.8 hr

Average Issue Resolution Time

43%

First-Call Issue Resolution Rate

Expose Real Network Risk Before It Disrupts Operations

Network penetration testing gives you a practical view of how an attacker could move through your environment, not just a list of theoretical vulnerabilities. The goal is to identify exploitable weaknesses, validate risk, and help leadership understand what needs attention first.

GroupOne IT approaches testing through a business stability lens. Findings are tied to operational impact, cybersecurity requirements, and the realities of insurance-driven controls. You get more than a scan. You get a clear path for reducing exposure without creating unnecessary disruption for your team.

Testing Designed for Business Clarity, Not Noise

A strong penetration test should produce decisions, not confusion. Testing is planned, controlled, documented, and focused on the systems that matter most to daily operations.

External attack surface review for internet-facing systems
Internal network testing to evaluate lateral movement risk
Firewall, segmentation, and access control validation
Prioritized findings based on business impact and exploitability
Executive-ready reporting with plain-language recommendations
Remediation guidance aligned to your technology roadmap

Turn Findings Into a Stronger Security Roadmap

Penetration testing is most valuable when it connects to ongoing cybersecurity improvement. GroupOne IT uses testing results to help you strengthen controls, reduce operational stress, and make better budget decisions around risk.

Because the service delivery model is ITIL-aligned, the work is organized around process, documentation, and mutual accountability. Technical findings can be translated into remediation steps for your internal team or coordinated with GroupOne IT managed services. The outcome is quieter IT: fewer unknowns, clearer priorities, and a network that supports business growth with less security guesswork.

Schedule a Network Risk Review

Find the gaps attackers would target before they become business disruptions.

Related Cybersecurity and IT Services

Frequently Asked Questions

What does your network penetration testing service actually involve?

Network penetration testing is a controlled process where your network is examined for exploitable weaknesses from both external and internal perspectives. You receive an executive-ready report detailing how attackers could move through your environment, with prioritized findings mapped to real business risk and operational impact. The testing includes external attack surface review, internal network evaluation, firewall and segmentation checks, and access control validation. All findings are documented with plain-language recommendations designed to support business decisions, not just technical fixes.

What are the main benefits of network penetration testing for my business?

Network penetration testing helps you proactively find and fix risks before attackers can exploit them, reducing the chance of costly downtime or data breaches. You receive actionable insights tied directly to your business operations, compliance requirements, and cyber liability insurance needs. Testing results make it easier to:

Justify security investments to leadership with clear risk data
Reduce audit stress by mapping gaps to compliance and insurance controls
Strengthen your technology roadmap with prioritized remediation steps

How is the network penetration testing process planned and executed?

The process starts with a comprehensive environment audit and a review of your systems, vulnerabilities, and compliance obligations. Testing is scheduled to minimize disruption and planned around your business hours and workflows. All activities are clearly documented, and findings are reviewed with you in a post-assessment session. You receive both technical and executive-level reports, along with guidance on next steps that fit your operational priorities.

How long does a typical network penetration testing engagement take?

The timeline for a network penetration testing engagement is usually between two to four weeks, depending on the size and complexity of your network. This includes planning, controlled testing, and final reporting. Testing is coordinated to avoid interfering with critical business operations, and all results are delivered with practical remediation recommendations. You can expect a clear schedule upfront, with transparent communication at every stage.

How is your approach to network penetration testing different from other providers?

You benefit from a testing approach that is not just technical, but fully aligned to business risk, compliance, and insurance requirements. The testing team follows ITIL-aligned processes, ensuring disciplined service delivery and thorough documentation. Every engagement includes executive-ready reporting and clear remediation guidance, so you know exactly where to focus your attention. Unlike providers who treat penetration testing as a one-off scan, your results are used to support long-term cybersecurity improvement and operational stability.