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Penetration Testing

Identify vulnerabilities in your IT systems before attackers do.

Have your systems thoroughly tested for vulnerabilities, misconfigurations, and entry points. Whether it’s internal or external IT, web applications, APIs, or AI tools—every test is designed to deliver actionable insights for your IT security management.

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Penetration tests reveal where your systems are vulnerable

Certified penetration testers

Real security specialists instead of automated vulnerability scans

Comprehensive report

Includes recommendations for addressing identified vulnerabilities

Made in Germany

Expertise from over 40 years of IT security made in Germany

Offensive Security Certifications

Hack the Box Certified Web Exploitation Expert
Hack the Box Certified Web Exploitation Specialist
Burp Suite Certified Practitioner
eMAPT Mobile Application Penetration Tester
eWPTX Web Application Penetration Tester eXtreme
Offensive Security Certified Professional
Certified AI/ML Pentester
Certified Red Team Professional
Certified Red Team Expert
Zero Point Security Red Team OPS

Penetration Tests Tailored to Every Environment

An Overview of Our Services

External Penetration Test (Perimeter)

We test systems and services accessible from the internet—such as VPN access points, firewalls, email servers, and web servers.

Internal Penetration Test

We test the network infrastructure and systems from the perspective of an internal attacker—e.g., office IT, Active Directory, and file shares.

Web Application Penetration Test

We test login areas, customer portals, booking systems, and other web applications—for both anonymous and authenticated users.

Entra ID Security Check

We test the Entra ID cloud infrastructure—including access controls and role assignment.

API Penetration Test

We test interfaces of web applications, mobile apps, or backend systems—including authentication, input validation, and permission checks.

Client Security Check

We test a deployed Windows client—focusing on configuration, local permissions, password storage, and tamper protection.

Physical Security Penetration Test

We test physical access points and security-related infrastructure—such as reception areas, doors, and access controls.

AD Penetration Test Compact

We test your Active Directory from the perspective of an internal attacker—focusing on vulnerabilities and misconfigurations with critical or high risk.

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Additional Services

Discovery Scan

We collect all publicly available information about your organization, such as IP address ranges, domains, subdomains, web applications, and email addresses. The results serve as the perfect foundation for a customized external penetration test.

Passwort Audit

We assess password security within your Active Directory. Using various password-cracking techniques, we identify all passwords that pose a security risk.

Network Segmentation Penetration Test

We assess network segmentation and the structure of your corporate network. This involves determining whether individual network segments are effectively separated from one another and whether access to sensitive, critical areas, services, and applications is properly secured.

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Success Stories

What Our Customers Say

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Request your next penetration test now

We’d be happy to assist you. You can also reach us by phone at +49 234 9762-820 (Mon–Fri: 8:00 AM–5:00 PM CET) or by email: info@gdata-adan.de

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Additional services to strengthen your IT security

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Guaranteed response times

Incident Response Retainer

We work together with you over the long term to improve your incident readiness. If an incident occurs, we’re there for you with guaranteed response times. 

Get to know the Incident Response Retainer
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24/7 expert protection

Managed XDR

Our Managed SOC stops cyberattacks for you. 24/7 with personalized service from Germany that you can trust.

More about MXDR
Penetration Testing: Identifying Security Vulnerabilities | G DATA: G DATA CyberDefense AG