Network Penetration Testing Services for Real-World Threats

What Is Network Penetration Testing?

Most organizations think their network is secure—until a real-world test proves otherwise.

Network Penetration Testing is the process of ethically simulating attacks on your internal and external infrastructure to find out exactly how a threat actor might gain access, move laterally, and compromise sensitive systems. Our approach aligns with the NIST Technical Guide, a recognized framework for comprehensive security testing.
It’s about going beyond a surface scan or compliance checkbox. It’s about discovering what’s really possible—before someone with bad intentions does.

Think of it like hiring someone to break into your office—but with your permission and a detailed report afterward. We explore open ports, outdated services, misconfigured firewalls, and exposed credentials, all the things attackers look for first.

Why It Matters

  • Surface scans aren’t enough. Vulnerability scanners only go so far—they don’t exploit or verify.
  • Attackers don’t follow rules. Our tests mimic their behavior so you can see how far they could get.
  • It informs real risk. You get insight into which vulnerabilities matter most, not just which ones exist.

     

When done right, network penetration testing gives you the confidence that your network can withstand real pressure—not just pass an audit. We also align with the OWASP Penetration Testing Methodology to ensure comprehensive coverage of real-world attack vectors. Unlike a basic network vulnerability assessment, this is a full infrastructure penetration test designed to mimic real-world threats.

Digital illustration of padlocks on a network circuit board representing Network Penetration Testing and securing IT infrastructure from cyber threats.
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What We Actually Test in a Network Penetration Engagement

Most people think of networks as just routers and firewalls—but they’re far more complex. Between cloud links, remote users, internal systems, and old legacy setups, there’s a lot to miss. That’s where Network Penetration Testing comes in.

We don’t just scan and send a report. We test your network like an attacker would—poking, prodding, and trying different angles until we figure out what’s open, what’s exposed, and what’s easy to exploit.

Here’s the kind of ground we usually cover:

If someone got past your VPN—or was already inside—what could they reach? We look at how your internal systems behave under pressure:

  • Can we move laterally across departments?
  • Is sensitive data sitting unprotected on shared drives?
  • Are your user accounts overly privileged?
  • How easy is it to abuse network protocols?

This helps catch the stuff attackers thrive on—like weak segmentation or legacy systems with no logging.

We take a close look at anything that’s exposed to the internet: cloud interfaces, VPNs, admin portals, and more. If it has an IP and it’s reachable, it’s fair game.

We dig into:

  • Open ports and unfiltered services
  • Weak authentication
  • Outdated software versions
  • Forgotten assets no one’s watching

This kind of Network Penetration Testing helps you lock the front doors and close the windows attackers are checking.

If your network lives in the cloud—or somewhere between cloud and on-prem—we’ll trace how data flows, how access is controlled, and what’s at risk.

  • Are cloud storage buckets open?
  • Are users overly privileged in your IAM setup?
  • Can an attacker pivot from cloud to internal?

We also test the places your team logs in from: VPNs, RDP servers, and remote tools. Misconfigurations here are one of the top ways attackers get a foothold.

We check for:

  • Weak login protections
  • Outdated access tools
  • Reused credentials
  • Inconsistent MFA enforcement

We review your core infrastructure to make sure the things protecting your network aren’t themselves vulnerable.

  • Is your firewall logging?
  • Are management interfaces locked down?
  • Are there outdated firmware versions with known exploits?
Illustration of shield protecting network devices, servers, and cloud systems during Network Penetration Testing to identify vulnerabilities and risks.

Internal testing gives us insight into your network security posture—how internal users interact, where privilege creep exists, and how internal network testing exposes trust boundaries.

Want to see how this looks in a real report? → Request a Sample Network Penetration Testing Report

How We Actually Test Your Network

When it comes to Network Penetration Testing, there’s no one-size-fits-all method. The way we approach your network depends on how much information and access you share with us. Some clients give us nothing but an IP address. Others hand us network maps and internal credentials. Each scenario reveals different types of risk—and we adapt accordingly.

Most teams start with gray or black box testing, then open the door wider once they see how we work. We’re flexible, and we’ll always recommend what makes the most sense for your setup and security goals.

Whether it’s network VAPT from the outside or validating your external attack surface, we adapt our approach to match your needs.

Need help choosing the right approach? → Schedule a 15-min call and we’ll walk you through it.

How We Actually Run a Network Penetration Test

We treat your network like it’s our own—only we’re looking at it like an attacker would. Our process isn’t just a checklist; it’s a careful mix of reconnaissance, testing, and real human analysis that helps you find the gaps before someone else does.

Here’s how we usually approach a Network Penetration Testing engagement:

Pre-Engagement

We start by understanding what you need. Maybe it’s your external perimeter, maybe it’s your internal systems. Either way, we’ll align on the scope, agree on rules of engagement, and lock it in. We’ll also handle the NDA and make sure we’re clear on timing, access, and what success looks like.

Mapping Out Your Network

Before touching anything, we gather information—public IP ranges, DNS records, remote access portals, maybe some network topology if you’re doing internal testing. This helps us avoid blind spots and focus on what matters.

Finding the Weak Spots

Here’s where the real testing begins. We combine automated tools and manual techniques to look for issues —like open services, insecure protocols, unpatched systems, or outdated configurations.
We don’t stop at just listing them. We validate, dig deeper, and rule out the false positives most scanners would miss.

Controlled Exploitation

Now, we see what’s really exploitable. Can we get into a system through a weak service? Can we move

laterally once inside? Everything’s done safely, with your approval, and we document every step along the way.

Post-Exploitation (If Applicable)

In cases where we gain access, we explore how far that access could go. Can someone escalate their privileges? Access sensitive files? Reach systems that should’ve been segmented? This helps you understand what a breach could really look like.

Report & Risk Breakdown

Our report isn’t just a wall of findings. You’ll get clear, prioritized insights: what we found, why it matters, how it could be exploited, and how to fix it. There’s a summary for leadership and technical guidance for your engineering team.

Optional: Retesting for Peace of Mind

Once everything’s patched, many teams ask us to retest. It’s a good way to confirm that the fixes worked—and it gives you something clean to hand to auditors, clients, or internal leadership.

Why Choose Cyber Guardians for Network Penetration Testing

There’s no shortage of firms offering penetration testing. The difference is in how they deliver it—and how much of it actually helps you improve. Here’s what we believe makes our approach work better for the teams we partner with:

We Test Like Attackers, But Explain Like Engineers

Our team knows how to think like a threat actor—finding paths others often miss. But we don’t just show you the door we used to get in. We explain how it happened, what systems were involved, and how to fix the gap without derailing your roadmap. Our reports make sense to developers, security teams, and business leads alike.

Context Over Noise

Not every alert is worth losing sleep over. We filter out the clutter and focus on what’s actually risky in your specific setup. That way, your team isn’t chasing low-impact issues—they’re fixing the things that could actually hurt you.

Support That Sticks Around

Need help breaking down the results for your dev team? Want to walk your leadership through the risks? We’re still here after the test wraps up. Whether you need help with remediation, reporting, or a follow-up audit—we’ll work with you to close the loop.

Built for Continuous Security

A single Network Penetration Testing engagement is valuable—but the real strength comes from using it as part of an ongoing security process. We help you build habits that improve with every test. Over time, fixes get faster, issues get fewer, and your team gets sharper.

Trusted by Teams That Can’t Afford to Get It Wrong

Our clients include companies that move fast, handle sensitive data, or face serious regulatory pressure. They don’t need fluff—they need clarity, fast response, and real results. That’s what we deliver.

Whether you need to secure your network before an investor review or need penetration testing for compliance, we’re here to help.

→ Curious how we work? Request a sample report or book a 15-minute discovery call. We’ll walk you through it—no jargon, no hard sell.

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Team Certifications

The VAPT Team Certifications include:

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Tools we use

Nessus

Nexpose

nmap

OpenVAS

Nikto

Kali

Bloodhound

Impaket

What You’ll Actually Walk Away With

We don’t believe in vague reports or security jargon that needs a translator. When you work with us on a Network Penetration Testing engagement, here’s exactly what you’ll get—and how each piece helps you move forward confidently.

Illustration of a digital lock and cloud storage representing secure deliverables in Web Application Security Testing, including vulnerability reports and safe hosting certificates.

After the initial testing is done, you’ll get a clear, detailed report. We walk you through each issue we found—what it is, how it could be exploited, and why it matters. Every item is explained in plain English, with steps your team can act on immediately. No guesswork. No filler.

If you’ve applied fixes and opt for a retest, we’ll issue a final version of the report. This one includes everything from the original, plus notes on what’s been resolved and what still needs attention (if anything). Most of our clients use this version with auditors, clients, or leadership teams.

If your systems meet our standards post-testing—or once critical issues have been patched—we can issue a certificate confirming the completion of third-party testing. It’s especially helpful for sales teams, procurement, or investor due diligence.

Need formal proof for a SOC 2 audit or enterprise client? We’ll provide a signed letter summarizing the scope of your Network Penetration Testing, who performed it, and when it was completed. Simple, professional, and ready for your compliance folder.

 

Our third-party penetration test reports are written for both tech teams and auditors, so you get an audit-ready report every time.

Want a better idea of what these documents look like?
→ Request a sample report or download a redacted version to see for yourself.

Trusted by 200+ Founders & CTO World Wide

Hear from our satisfied clients. They’ve experienced enhanced cybersecurity posture and peace of mind with our comprehensive services.

JAZEL OOMMEN Co-founder, Munchtime

We enjoyed working with the Cyberguardians team for our security audit. Their responses were always fast and thorough.

Shilpa M Bhatnagar Founder, Haeywa

The Cyber guardians team is very diligent and always available to help. There understanding of cyber security and testing is par excellence.

Jagjeet Singh Manager IT, Lambda Function

Reliable and Prompt Service, Fast execution with clear guidance and support. Awesome experience with CyberGuardians Team.

Resources

Mobile VAPT Resources include:

Screening Report

This is the first report that includes screening data.

Testing Report

This is the final report that includes testing data .

Vulnerability Report

This is the first report that includes Vulnerability data.

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Faq's

Find quick solutions to your most common queries here.

A lot of folks think it’s just scanning your systems and flagging what’s outdated. But Network Penetration Testing goes deeper than that. We look for weak spots in your network, then actively try to exploit them—just like an attacker might. It’s hands-on, strategic, and way more useful than a basic vulnerability scan.

Good question. We take a cautious approach. If we’re working on production systems, we’ll flag anything potentially disruptive and get your go-ahead first. No surprises. And if you’ve got a staging or test environment, we’re happy to test there instead.

It varies. We’ve seen everything from open services and insecure firewall rules to poor network segmentation and credentials exposed over internal traffic. The point of Network Penetration Testing isn’t to shame your setup—it’s to show you what’s realistically exploitable and how to fix it.

Yes, and they’re written that way on purpose. Auditors want proof that you’re taking security seriously. Our reports provide both technical depth for your engineers and clean summaries for stakeholders. If you're going for compliance, this is a strong asset.

At the very least, once a year. But ideally, you should test after major changes—like deploying new infrastructure, merging with another company, or prepping for a compliance audit. Networks evolve quickly. Your testing schedule should too.

If your scope is clear and you’re ready to go, we can usually start within a few business days. We’ve even handled same-week starts for teams under tight audit deadlines. Just let us know what you’re working against.

Absolutely. Not every team wants a full-blown engagement. Maybe you just need your cloud perimeter tested, or want to double-check how secure remote access really is. We’ll scope the test around what matters most to you and keep things lean and focused.