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Certification Landscape
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Pentest: The ultimate safety test

Benefit from the extensive experience of our highly certified elite white hackers, who offer you one of the leading pentests on the market.

Not all pentests are the same! Where others are satisfied, we go the decisive step further. In over 70% of our orders, we find significant gaps despite previous "penetration tests" by other providers.

Why? Because we work with the same energy and meticulousness that a malicious attacker would. We also prioritize our recommendations for action for you so that your IT resources can focus on your company's core business.

Every company and every network is different. Only an individual approach provides the necessary insight into the status of your systems and ultimately optimum security.

Take your cyber security to the next level.

Your advantages at a glance:

Certified
You have the best OffSec™ certified white-hat hackers on your side
Close to reality
You learn your actual vulnerabilities - not the results of scanners
Tailor-made
Both attacks and risk assessments are adapted to your company

How greenhats Turned a High-Stakes Pitch into a Cybersecurity Win with OSCE³

greenhats used OffSec training and a Try Harder mindset to build a high-performance team and ... learn more

Quality creates trust

Not sure which provider is the right one or had a bad experience?

Sie wollen weg von
  • "Pentesters" to whom you first have to open the doors to get results

  • Bronze, silver, gold, junior, senior? Uncertainty in the selection of depth and skills of examiners

  • Inefficiency in the use of the corresponding IT resources
  • Unagreed actions outside your working hours

  • "Pentesters" who want to "feel it out" before placing an order

  • Artificially inflated reports with theoretical findings

  • Security lateral entrants as lead or senior pentester

  • OWASP Top 10 checks and Nessus reports disguised as pentests
  • Consultants who do not yet have experience in dealing with C-Level
  • Contact person without knowledge of German

  • Automated pentests that affect your critical systems in an uncontrolled manner

  • Pentesters who carry out several jobs simultaneously

  • Contact persons who use WhatsApp & Co. for confidential communication and data exchange
  • Remote pentests with black box devices in your productive network without a contact person on site

With us, you come first

jederzeit, überall
  • The best-certified pentest team for your project

  • Minimal strain on your IT resources

  • Clear agreements, real findings - no guesswork or buzzwords

  • Experienced and experienced planning of orders

  • Onsite-first: We are on site, see more and create trust

  • Concise, practical reports instead of theoretical page fillers

  • Hands-on, traceable and safe: no uncontrolled automation

  • Communication at eye level: in German and English, encrypted according to the TOFU concept, storage and processing of all data exclusively in Germany

The right strategy for your project

Red Teaming

Ihre Verteidigung wirklich prüfen

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As part of red teaming, we carry out controlled attacks on your physical and digital infrastructure, just as real attackers would. We combine technical tests with social engineering and physical security tests such as on-site tailgating. Our aim is to test the resilience of your organization to real and spontaneous attacks and to check whether processes and regulations are actually being implemented. The time frame determines the depth of the analysis. Whether it's several weeks of planning or a one-day inspection: we get the best out of it for you and are prepared for every scenario.

Audit

Strukturiert, nachvollziehbar, prüfbar

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The audit variant is ideal if you need high-quality results quickly or the objective does not justify the scope of a traditional pentest. Our experienced testers pursue the same objectives as in a traditional penetration test, but work closely with your IT from the outset. Through direct exchange and joint inspections, vulnerabilities are identified and discussed immediately. This gives you precise results, saves time and budget and equips your teams with valuable know-how and insights.

Black Box

Was sieht ein Angreifer wirklich?

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In the black box test, we proceed without prior knowledge - just like a potential attacker with access to your application / infrastructure. We analyze publicly accessible systems, interfaces and applications and identify potential entry points. These tests are particularly valuable for understanding how your company or application is perceived from the outside and what attack surfaces actually exist. The aim is to provide attackers with no opportunity and to shield even the smallest sources of information.

White Box

Wir prüfen dort, wo andere Tests aufhören

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We prefer the white box approach for targeted application tests. We combine line-by-line manual logical testing with automation and experience. We test every application and every language - from mobile apps and desktop software to complex web platforms. The focus is on the really critical components such as authentication and authorization. If desired, we can go one step further with our code sniper model: a permanent bug bounty approach in which we have round-the-clock access to your code and continuously find vulnerabilities - before real attackers do.

Grey Box

Realistisch, fokussiert und ressourcenschonend

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Grey box tests combine the perspective of an external attacker with selected internal information. This allows us to minimize the risk where it is highest and at the same time keep the effort low. This method provides you with realistic and meaningful results without unnecessarily burdening your processes. The targeted use of internal information, such as network architecture, interface descriptions or restricted access data, also enables a deeper and more effective analysis of critical components than the black box method.

Social

Bewusstsein schaffen statt Schuld suchen

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Technology can be secured, but people should be sensitized. With our social engineering tests, we show you how attackers could exploit trust, obtain information or gain access. We carry out realistic phishing campaigns, conversations and physical tests. Together with you, we evaluate where training is needed and how you can build a successful training strategy with us. Our goal is not finger-pointing, but a lasting awareness of security in everyday life.


What our customers say

We trust with conviction that the greenhats team will always scrutinize our projects and properties rigorously in order to drive our issues forward together.
Dr. Kai H. Krieger Change Manager Transformation
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We have been working very closely and trustingly with greenhats for many years.
Thanks to the personal contact, we always feel that we are in good hands and safe.

Marius Bindner Informationssicherheits-beauftragter
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From the very first meeting with greenhats GmbH, we were convinced that we had found the right service provider for our company. We worked together as a team right from the start and were able to achieve a great result for both sides.
Nicole Metz IT | ISMS
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We were very impressed by greenhats' thorough and professional approach. The detailed reports and recommendations provided to us were extremely helpful in addressing the vulnerabilities and strengthening our security measures.
Dirk Schomber Leiter Organisation und Entwicklung IT
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My first contact with greenhats was a stroke of luck when dealing with the HAFNIUM security gap in 2021. As a project manager at an IT service provider, I was impressed by their expertise. In my new role as division manager for IT and data security at the Engel Group, I relied on the knowledge of greenhats. Uncomplicated and professional - an invaluable partnership.
Johannes Hahn Bereichsleiter IT / Datensicherheit
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We at REBER have been using the learning platform for two years now. It offers our employees a great opportunity to identify security gaps in the digital world in a fun way and raise awareness at the same time. Practical videos, intuitive gamification elements and certificates round off the offer for us.
Mirko Kauffeldt Geschäftsführer
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Penetration testing according to DORA

We support financial and FinTech companies in fulfilling the new DORA obligations with pinpoint accuracy. Our holistic test portfolio covers the entire spectrum - from the annual vulnerability and pen test program to highly realistic threat-led penetration tests (TLPT) on live systems.

  • DORA-compliant - methodology, scoping and reporting comply with Art. 24-27 and the ESA RTS on TLPT.

  • Threat intelligence driven - attack scenarios are based on up-to-date, external cyber threat intelligence, precisely tailored to your risk profile.

  • Independent & certified - Our Red Team specialists have the highest internationally recognized offsec certifications (OSEE - OSCP+ - OSCE³ - OSED - OSEP - OSWP - OSWE - OSDA, etc.) and extensive TLPT references.

  • Secure execution - tests take place under strict rules of engagement on production environments, accompanied by a dedicated control team to minimize risk and collateral damage.

  • Regulatory reporting - You receive an audit-proof management report package including a roadmap of measures and a summary suitable for the authorities.

Real added value through in-depth as-is analyses that do more than just meet regulatory requirements. Our goal is to make you safer. To achieve this, we are happy to look over our shoulders

Let our experts advise you without obligation