How Internal Penetration Testing Secures You From Within

internal penetration testing

Why assuming your internal network is safe is a costly mistake.

You spend a fortune building digital walls to keep attackers out. But what if the biggest risks are already on the inside? A solid security plan needs internal penetration testing to find the vulnerabilities hiding behind your firewall. 

The process is simple: we simulate an attack from an insider’s perspective to find your weak spots before a real attacker does.

An unlocked server room, a password on a sticky note, or one wrong click can give an intruder free rein over your network. As they say, your security is only as strong as its weakest link.

What Exactly Is an Internal Penetration Test?

An internal penetration test is a security check done from inside your company’s network. It’s different from an external pentest, which tests your defences from the outside. 

In this case, we assume the attacker has already slipped past the front gate, perhaps as an employee or by using stolen credentials.

Our job is to see how far they can get. What files can they access? What systems can they control? 

This kind of internal threat simulation uncovers dangerous flaws that automated scanners often miss, giving you a hands-on look at how you’d hold up against a real attack.

The Benefits of a Proactive Internal Network Security Audit

Testing your internal defences regularly gives you clarity and peace of mind. It turns security from something on paper into something you know works.

Find Critical Vulnerabilities First

People make mistakes. It’s one of the biggest reasons for security breaches. 

A thorough IT security testing process finds everyday problems like weak passwords, unpatched software, or staff having access to things they shouldn’t. 

Finding these gaps means you can fix them right away.

See Your True Security Posture

A detailed test gives you an honest picture of your internal network security. It shows you how your security would actually perform during a real incident. 

Cybersecurity Insiders noted in their 2024 Insider Threat Report that 83% of companies reported between 1 and over 20 insider data breaches in 2024. This number increased from 60% in the previous year.  

A proper internal penetration assessment helps you avoid becoming another statistic.

Protect Your Important Data

Your most valuable assets, from client lists to new product designs, live on your internal network. 

An internal pentest checks if the wrong people can get their hands on this data. It makes sure your data protection rules are working, and that private info stays private.

Test Your Team’s Reflexes

How quickly would your team notice someone snooping around? An internal test is a great way to see how well your security team spots and reacts to suspicious activity. 

An internal security test is a safe way for your team to practise their skills and for you to improve your game plan for an attack.

The Risks of a DIY Company-Wide Vulnerability Assessment

Trying to handle security testing in-house might seem cheaper, but it often creates bigger risks.

You Can’t See Your Own Blind Spots

Your IT team knows your network inside and out. That’s great, but that’s the problem! 

Their familiarity creates blind spots, causing them to overlook flaws in the systems they’ve built and maintain. An external expert, like 7ASecurity, brings a fresh pair of eyes, which is critical for a real audit. 

You Need an Attacker’s Mindset

Your team’s job is to keep things running. Our job is to break into things. 

We bring a specialised, offensive mindset to every assessment, which is at the heart of all our security services

It’s our job to stay up to date on the latest in cybercrime, and we continuously strive to find better ways to penetrate systems. So, we’ll try things your internal team might never think of.

Inaccurate Results Are Worse Than No Results

An in-house test without the right expertise can spit out a report full of noise or miss critical flaws entirely. This leads to a false sense of security, which is far more dangerous than knowing where your weak points are. 

Actionable findings from a professional team give you the confidence to make changes that actually matter.

We Find the Flaws, So They Don’t Have To

At 7ASecurity, our manual, expert-led approach discovers the serious issues that automated tools and less experienced teams miss. We give you a clear report with the technical details your team needs to fix everything we find, and we even offer free fix verification to make sure the job is done right.

Your Security Deserves a Second Opinion

Let’s talk!