White-Box
Penetration Testing

Full-knowledge security testing with documentation, credentials, and source-code access — the most thorough approach, designed to find the deep flaws that surface only with complete visibility.

Overview

Maximum coverage, full transparency.

White-box penetration testing gives our testers everything — architecture diagrams, credentials for every role, and source code. With full visibility we can reach the deepest and most complete coverage, finding logic and design flaws a black-box test would never see.

It is the most efficient way to assure a critical application or meet a high compliance bar, because no time is spent on reconnaissance and every code path can be examined.


Approach

What white-box covers.

Full-knowledge testing with documentation, credentials, and source access.

Methodologies: OWASP WSTG OWASP ASVS CWE Top 25 SAST + manual

FAQ

White-box penetration testing FAQ

The questions we're asked most about scope, cost, and timing.

How much does white-box penetration testing cost?
White-box testing typically starts around €2,500 and is scoped by application size, number of roles, and code volume. It is often the most cost-efficient because no time is spent on reconnaissance. Use our estimator for a tailored figure.
What is white-box penetration testing?
Testing performed with full knowledge — architecture, credentials for all roles, and source code — for the deepest, most complete coverage.
Is white-box better than black-box?
It is more thorough, not strictly better — they answer different questions. White-box maximises coverage; black-box maximises realism. Many programmes use both over time.
Do you need our source code?
For a true white-box engagement, yes — source plus documentation and credentials. We handle all materials under strict confidentiality.
Does white-box include code review?
It is source-assisted; for a dedicated line-by-line review, pair it with our secure code review service.
What do you need for a white-box test?
Source code or architecture documentation, credentials for all roles, and any design notes — all handled under NDA.
Is white-box the same as a code review?
It is source-assisted dynamic testing; for a dedicated line-by-line review, pair it with our secure code review service.
Why is white-box often more cost-efficient?
No time is spent on reconnaissance, so more of the budget goes into finding and verifying real issues.
Will you sign an NDA before seeing our code?
Always — confidentiality terms are agreed before any materials are shared, and code is removed after the engagement.
Who is white-box best for?
Critical applications, regulated environments, and anyone wanting the most thorough possible coverage.

Related services

Explore more.

Ready for the deepest coverage?

A 30-minute scoping call costs nothing. A missed flaw costs considerably more.

Book a meeting Send an email