Acknowledged by 300+ organizations worldwide · Google · Apple · U.S. Department of Defense · Siemens · Sony

Penetration Testing & Application Security

Penetration testing that finds what attackers will — before they do.

We deliver manual, in-depth penetration testing for web, API and mobile applications — led by a security researcher whose vulnerability reports have been acknowledged by 300+ organizations, from Google and Apple to the U.S. Department of Defense. You get real findings, clear business impact and a fix-ready report.

Manual, not just scanners NDA & fully confidential Free retest included

Recognized by the security teams of

Google security acknowledgement Apple security acknowledgement Sony security acknowledgement Siemens security acknowledgement Philips security acknowledgement Bosch security acknowledgement ASUS security acknowledgement BlackBerry security acknowledgement Xiaomi security acknowledgement Mercedes-Benz Group security acknowledgement

Our Services

Penetration testing & application security, end to end

Whether you need a one-off penetration test or an ongoing security partner, every engagement ends the same way — a clear, prioritized, developer-ready report. Not a noisy scanner dump.

Penetration Testing

Web, API and mobile penetration testing that simulates a real attacker — manual, depth-first work that finds what automated scanners miss.

  • Web & REST/GraphQL API testing
  • Mobile apps (iOS & Android)
  • Auth, access control & logic flaws
  • Prioritized report with working PoCs

Continuous Security & Bug Bounty Advisory

Security that doesn't stop after one report. Ongoing testing as your product evolves, plus help running a bug bounty program that actually works.

  • Recurring assessments per release
  • Regression retesting
  • Bug bounty program design & scoping
  • Report triage & impact validation

Secure Code Review

A manual, line-level review of your source code — focused on the auth, access-control and logic flaws that cause the highest-impact breaches.

  • Manual source-code review
  • Injection, SSRF & misconfiguration
  • Hardcoded secrets & dependency risk
  • Developer-ready remediation guidance

Also available: incident triage & investigation, security architecture review and developer security training.

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Reply to every inquiry

Why teams choose us

An attacker's depth, an enterprise's discipline

We've found high-impact vulnerabilities in some of the world's most security-mature organizations. We bring that same standard to your application.

Manual depth, not checkboxes

Scanners find the obvious. We find the chained, logic and access-control flaws that lead to real breaches.

Real-world impact

Every finding ships with a working proof-of-concept and a clear story of what an attacker could actually do.

Developer-ready fixes

Reproducible steps and concrete remediation your engineers can ship — not vague warnings.

Confidential by default

NDA-friendly, responsible disclosure and full discretion on every single engagement.

How it works

How our penetration testing works

A clear, predictable engagement — you always know what's happening, what it costs, and what you get.

Scope & NDA

We agree on targets, rules of engagement and timeline. The NDA is signed before any testing begins.

Testing

Hands-on, manual penetration testing with open communication — critical findings are reported the moment we confirm them.

Report & walkthrough

A prioritized report with PoCs and remediation, followed by a live walkthrough with your team.

Free retest

Once your team has fixed the issues, we re-test every finding at no extra cost to confirm it's closed.

Recognition & credentials

Trusted by the organizations attackers target most

Public acknowledgements, official certificates of appreciation and government-level recognition — proof of work, not promises.

Government & EU-level

Programs with the highest bar for trust and disclosure.
  • U.S. Department of Defense
  • CERT-EU (European Union)
  • Dutch Tax Authority (Belastingdienst)
  • European Broadcasting Union
View the full Hall of Fame →

FAQ

Penetration testing FAQ

The questions teams ask us most before starting an engagement.

What is penetration testing?
Penetration testing is a manual, authorized simulated attack on your web, API or mobile application. The goal is to find and safely demonstrate real, exploitable vulnerabilities — broken access control, authentication flaws, business-logic abuse and more — before genuine attackers do, then hand you clear remediation.
How long does a penetration test take?
Most application penetration tests take one to three weeks depending on scope and complexity. You receive critical findings the moment they're confirmed, not only in the final report.
What do I receive at the end?
A prioritized report with proof-of-concepts, business impact and step-by-step remediation, a live walkthrough with your team, and a free retest once fixes are deployed.
Do you sign an NDA and keep everything confidential?
Yes. Every engagement is confidential and NDA-friendly, and the NDA is signed before any testing begins.
Does a pentest help with SOC 2, ISO 27001 or PCI DSS?
Yes. An independent third-party penetration test report supports SOC 2, ISO 27001 and PCI DSS audits, as well as customer security reviews.

Ready to test your security?

Tell us what you'd like tested and we'll scope it with you. We personally read and reply to every message — usually within 24 hours.

Based in Europe · Working remotely with clients worldwide · Available for new engagements