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Penetration Testing

A controlled, authorised attempt to break in.

A penetration test is a simulated attack against your systems, carried out by certified professionals under a formal agreement, using the same tools and techniques a real attacker would use. Unlike a vulnerability scan, which lists potential weaknesses, we actively exploit them, chain them together, and prove real business impact.

METHODOLOGY
OWASP & MITRE ATT&CK

Manual testing mapped to recognised, published standards.

DELIVERY
Certified testers

OSCP and CREST-certified individuals on every engagement.

CLOSURE
Retest included

Every fix independently verified, so remediation is guaranteed.

Types of test

Different systems, different tests

"Penetration test" covers several distinct engagements. Which ones you need depends on what you're protecting, and most organisations need more than one over time.

External infrastructure

Everything reachable from the internet: perimeter services, exposed applications, and the misconfigurations an attacker finds first.

Internal infrastructure

What an attacker achieves once inside, whether through a phished user or a device on the network. Consistently where the most serious findings surface.

Web application

The application layer itself: authentication, access control, injection, and business logic flaws that scanners cannot reason about.

API

The endpoints behind your applications and integrations, tested for authorisation gaps, rate limiting, and data exposure.

Wireless

Access points, network segregation and authentication, tested from the position of someone sitting in your car park.

Mobile

iOS and Android applications tested for insecure storage, weak API authentication, and client-side logic that shouldn't be trusted.

Physical

Attempts to gain unauthorised access to premises, testing whether your physical controls hold up against a determined visitor.

Most organisations start with an external test, because that is the attacker's first move. The internal test is usually the one that changes how a business thinks about its own network.

Our process

Scoped tight, tested by hand, proven on retest

The same four phases run on every engagement, whether it's a single application or a global estate.

01

Scope and threat model

We confirm assets, access level and rules of engagement, and agree exactly what success looks like before testing starts.

02

Test by hand

Manual-led testing against OWASP and MITRE ATT&CK, chaining weaknesses together the way a real attacker would.

03

Report

An executive summary a board can act on, and control-level detail an engineer can reproduce and fix, with every finding rated Critical, High, Medium or Low.

04

Retest and closure

Every fix independently retested and verified. A finding isn't closed until someone has proven it stays closed.

Common questions

What people ask before they commission a test

What is the difference between a vulnerability scan and a penetration test?

A vulnerability scan is automated, broad and fast, flagging known issues by signature. A penetration test is manual, targeted and adversarial: it chains weaknesses together to prove what an attacker could actually achieve, not just what might be wrong.

What methodology do you test against?

Testing follows OWASP (for applications and, where relevant, AI systems) and MITRE ATT&CK for adversary behaviour, so coverage is auditable and findings map to frameworks your auditors already accept.

Is retesting included in the price?

Yes. Every fix is independently retested and verified before we consider a finding closed. Remediation is proven, not assumed.

How long does a penetration test take?

It depends on scope, but most single-application or infrastructure engagements run one to two weeks of testing, followed by report delivery and a retest window once fixes are made.

Do you test AI and LLM-based applications?

Yes. Where an application includes a large language model, we test it separately against the OWASP Top 10 for LLM Applications, covering prompt injection, data leakage, excessive agency and related risks.

Get started

Don't leave your next test to the lowest quote

Every engagement is scoped individually. We assess your environment, identify what needs to be tested, and recommend the most effective approach. Nothing more, nothing less.

Book a scoping call with our team

Tell us what you're trying to protect, and we'll scope a test that actually answers it.

+44 20 7862 3837 [email protected] cyberarmedsecurity.com