Penetration Testing
ADVISORI delivers professional penetration testing (pentests) where experienced security experts probe your IT systems, networks, and applications using the same tools and techniques as real-world attackers — black box, white box, or grey box, tailored to your threat landscape and regulatory requirements such as DORA TLPT, NIS2, and ISO 27001.
- ✓Realistic assessment of your security posture through simulated attacks
- ✓Identification of complex security vulnerabilities that automated scans miss
- ✓Concrete risk assessment and practical recommendations
- ✓Fulfillment of regulatory requirements and industry standards
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Penetration Testing: From Vulnerability Discovery to Prioritized Remediation
Our Strengths
- Experienced, certified penetration testers (OSCP, CEH, GPEN, etc.)
- Structured approach with clear documentation and recommendations
- Focus on practical risk assessment and business relevance
- Comprehensive experience with various industries and technologies
Expert Tip
Regular penetration tests are essential as the threat landscape continuously evolves and your IT environment constantly changes. An annual penetration test should be the minimum; for critical systems or after major changes, we recommend more frequent tests. The combination of regular automated vulnerability scans with periodic manual penetration tests provides the best protection for your IT infrastructure.
ADVISORI in Numbers
11+
Years of Experience
120+
Employees
520+
Projects
Our penetration testing process follows a structured approach that ranges from the planning phase to post-processing. We ensure that all tests are conducted in a controlled manner with minimal impact on your business operations.
Our Approach:
Preparation: Definition of scope, objectives, methodology, and framework conditions of the test
Information gathering: Systematic research and analysis of available information about the target environment
Vulnerability identification: Scanning and manual analysis of potential vulnerabilities
Exploitation: Controlled exploitation of identified vulnerabilities for risk assessment
Analysis and documentation: Comprehensive documentation of results, risk assessment, and recommendations
"Many companies underestimate how creative real attackers can be. An experienced penetration tester thinks like an attacker and combines various vulnerabilities that, when viewed individually, are often classified as minor, into critical attack paths. This way, we can uncover security gaps that are overlooked in standardized scans while simultaneously conveying a deeper understanding of actual security risks."

Sarah Richter
Head of Information Security, Cyber Security
Expertise & Experience:
10+ years of experience, CISA, CISM, Lead Auditor, DORA, NIS2, BCM, Cyber and Information Security
Our Services
We offer you tailored solutions for your digital transformation
Network Penetration Testing
Comprehensive security assessment of your network infrastructure, including firewalls, routers, switches, and other network components. We identify vulnerabilities in network configuration, inadequately protected services, and potential entry points for attackers.
- Analysis of network architecture and segmentation
- Testing of network devices and services for vulnerabilities
- Identification of configuration errors and insecure protocols
- Assessment of network security measures and access controls
Web Application Penetration Testing
Thorough security assessment of your web applications according to OWASP Top 10 and other best practices. We examine your applications for vulnerabilities such as injection attacks, cross-site scripting, insecure authentication, and other common security issues.
- Testing for OWASP Top 10 vulnerabilities and beyond
- Analysis of authentication, authorization, and session management
- Verification of input validation and output encoding
- Assessment of application logic and business-specific vulnerabilities
Mobile Application Penetration Testing
Comprehensive security assessment of your iOS and Android applications on both client and server side. We analyze mobile apps for vulnerabilities such as insecure data storage, insufficient transport protection, and faulty cryptography.
- Static and dynamic analysis of the mobile application
- Verification of client-server communication
- Analysis of local data storage and cryptography
- Assessment of platform-specific security mechanisms
Red Team Assessments
Comprehensive, goal-oriented attack simulations that combine multiple attack vectors to test your organization's resilience against real threats. Red Team Assessments go beyond traditional penetration tests and simulate the tactics, techniques, and procedures (TTPs) of real attackers.
- Goal-oriented approach with defined target objectives
- Combination of various attack vectors (technical, physical, social)
- Emulation of real attacker groups and their tactics
- Assessment of detection and response capabilities of your security team
Looking for a complete overview of all our services?
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Frequently Asked Questions about Penetration Testing
What is penetration testing and how does it differ from other security tests?
Penetration testing is a systematic method for evaluating IT security through simulated attacks conducted by qualified security experts under controlled conditions. Unlike other security tests, the focus is on the active identification and exploitation of vulnerabilities in order to demonstrate their actual exploitability and risk potential.
🔍 Key characteristics of penetration testing:
🔄 Differences from other security tests:
🎯 Typical objectives of a penetration test:
📋 Core components of a professional penetration test:
⚙ ️ Types of penetration tests by target focus:
How does a professional penetration test work?
A professional penetration test follows a structured, methodical approach consisting of several phases. The entire process is carefully planned and executed from initial planning through to final reporting, in order to deliver maximum value while minimizing risks to ongoing operations.
🔄 The typical phases of a penetration test:
📋 1. Preparation and planning phase:
🔍 2. Information gathering (Reconnaissance):
🔎 3. Vulnerability analysis:
⚡ 4. Exploitation:
🎯 5. Post-exploitation and risk assessment:
📊 6. Analysis and reporting:
🔄 7. Remediation and re-testing (optional):
What are the different types of penetration tests?
Penetration tests can be categorized in different ways — by knowledge level, target focus, or perspective. The choice of the appropriate testing approach depends on your specific security objectives, the maturity of your security measures, and the assets to be protected.
🔍 Categorization by knowledge level (Testing Approach):
🎯 Categorization by target focus (Target Type):
10 and beyond
👥 Categorization by perspective (Testing Perspective):
🔄 Special forms of penetration testing:
When and how often should penetration tests be conducted?
The optimal frequency of penetration tests depends on various factors, including the criticality of your systems, regulatory requirements, the rate of change in your IT environment, and your overall risk profile. A well-considered strategy for regular testing is essential to maintaining a continuous security posture.
🔄 Basic recommendations on testing frequency:
📅 Suitable occasions for additional penetration tests:
🔍 Factors influencing the optimal testing frequency:
🌐 Test scope and rotation strategy:
📊 Integration into the security lifecycle:
⚖ ️ Balanced approach to continuous security:
What should you look for when selecting a penetration testing service provider?
Selecting the right penetration testing service provider is critical to the quality and value of test results. An experienced, professional provider can make the difference between a superficial review and an in-depth security analysis that uncovers real risks and identifies concrete opportunities for improvement.
🔍 Essential qualifications and certifications:
🛠 ️ Technical competence and methodology:
📊 Reporting and value delivery:
⚖ ️ Legal and contractual aspects:
👥 Communication and collaboration:
🔄 Project execution and follow-up:
🚫 Warning signs when selecting a provider:
What legal aspects must be considered in penetration tests?
Penetration tests operate in a sensitive legal area, as they deliberately uncover and exploit security vulnerabilities in IT systems. To minimize legal risks and meet compliance requirements, various legal aspects must be carefully considered.
📜 Fundamental legal prerequisites:
⚖ ️ Relevant areas of law and regulations:
🌐 Cross-jurisdictional aspects:
🛡 ️ Data protection and compliance:
📋 Contractual safeguards:
⚠ ️ Particular risk areas:
📝 Documentation and evidence:
What are the typical vulnerabilities discovered during penetration tests?
Penetration tests regularly identify certain categories of vulnerabilities that are commonly found across many organizations. Awareness of these frequent security gaps enables proactive hardening and targeted improvement of the security posture before they can be exploited by real attackers.
🔓 Network security vulnerabilities:
🌐 Web application vulnerabilities (per OWASP Top 10):
📱 Mobile application vulnerabilities:
☁ ️ Cloud-specific vulnerabilities:
3 buckets, databases, or other cloud resources.
👥 Human and organizational vulnerabilities:
🔒 Identity and access management vulnerabilities:
🧪 DevOps and CI/CD vulnerabilities:
How do you measure the ROI of penetration tests?
Measuring the return on investment (ROI) for penetration tests is an important but challenging task. Unlike revenue-generating measures, the value of penetration tests lies primarily in the avoidance of potential costs and risks. A well-considered approach to ROI analysis helps quantify and communicate the business value of this important security measure.
💰 Basic ROI considerations for penetration tests:
📊 Quantitative approaches to ROI measurement:
📈 Qualitative value aspects (difficult to quantify, but important):
🔍 Performance indicators for penetration testing effectiveness:
⚖ ️ ROI optimization strategies:
📝 Practical approaches to ROI documentation:
🚫 Avoiding common pitfalls in ROI calculation:
How do web application penetration tests differ from other penetration tests?
Web application penetration tests are specialized security assessments that focus specifically on the security of web applications. They differ from other penetration tests in their specific focus, methodology, and the types of vulnerabilities they are designed to uncover.
🌐 Specific focus and objectives:
🔍 Methodological specifics:
10 and the OWASP Testing Guide as a standard reference.
🛠 ️ Specific testing techniques and tools:
🎯 Typical vulnerabilities in web applications:
📊 Phases of a web application penetration test:
⚖ ️ Relevant compliance standards:
🔄 Integration into the development lifecycle:
What is the difference between a penetration test and a vulnerability assessment?
Penetration tests and vulnerability assessments are two complementary but distinct approaches to evaluating IT security. While both aim to identify security gaps, they differ fundamentally in depth, methodology, objectives, and required resources. Understanding these differences is essential for selecting the right method to meet your specific security needs.
🎯 Fundamental objectives:
🧰 Methodology and depth:
⏱ ️ Time frame and frequency:
📊 Results and reporting:
💼 Resources and expertise:
🔄 Ideal use cases and combination:
What role does social engineering play in penetration tests?
Social engineering is an essential component of comprehensive penetration tests, as it addresses the human factor as often the most critical vulnerability in the security chain. By integrating social engineering techniques into penetration tests, a more realistic assessment of an organization's overall security is made possible — one that goes beyond purely technical aspects.
🧠 Fundamental concept and relevance:
🎭 Types of social engineering in penetration tests:
📋 Integration into penetration testing methodologies:
⚖ ️ Ethical and legal considerations:
📈 Measurement and documentation of results:
🛡 ️ Recommendations for risk mitigation:
🔄 Continuous improvement through social engineering tests:
How can an organization optimally prepare for a penetration test?
Proper preparation for a penetration test is critical to its success and value. A well-prepared organization can extract maximum benefit from the test while minimizing unnecessary risks. This comprehensive preparation encompasses technical, organizational, and communicative aspects.
🎯 Definition of clear objectives and expectations:
📋 Organizational preparation and planning:
🧩 Technical preparation and documentation:
🔄 Communication and awareness:
⚠ ️ Risk management and contingency planning:
📊 Preparation for post-test review and utilization of results:
🛡 ️ Special considerations for specific test types:
🧪 Proof of concept and pre-testing:
What role do penetration tests play in the DevSecOps methodology?
Penetration tests are an essential component of the DevSecOps approach and contribute to establishing security as an integral part of the entire development lifecycle. They help close the gap between development, security, and operations, and enable continuous security review.
How are findings from penetration tests effectively communicated and prioritized?
Effective communication and prioritization of penetration test findings is critical to extracting maximum value from tests. Well-structured reporting and strategic prioritization enable resources to be deployed optimally and the most significant security risks to be addressed first.
How do penetration tests for cloud environments differ from traditional tests?
Penetration tests for cloud environments differ in several key respects from traditional tests for on-premises infrastructure. These differences arise from the distributed nature, shared responsibilities, and specific technologies used in cloud environments.
What advantages does red teaming offer compared to classical penetration tests?
Red teaming and classical penetration tests are complementary approaches to security assessment. Red teaming offers particular advantages through its comprehensive, realistic approach, with a focus on simulating real attacks and testing detection capabilities.
How can penetration tests be effectively integrated into agile development environments?
Integrating penetration tests into agile development environments requires an adapted approach that accommodates the speed and flexibility of agile methods while still ensuring solid security reviews.
🔄 Core principles for agile penetration tests:
🛠 ️ Practical implementation strategies:
🔍 Test types for different agile phases:
📊 Measurement and improvement:
⚖ ️ Challenges and solutions:
What new challenges do AI-based systems present for penetration tests?
AI-based systems present penetration testers with new and complex challenges that go beyond traditional testing approaches. The unique characteristics of AI systems require adapted methods to identify and address their specific security vulnerabilities.
🧠 Special characteristics of AI systems:
🎯 Specific attack vectors for AI systems:
🛡 ️ Adapted penetration testing methods:
📋 Framework for AI penetration tests:
🔧 Specialized tools and techniques:
⚖ ️ Governance and compliance aspects:
How do penetration tests in regulated industries differ from standard tests?
Penetration tests in regulated industries such as financial services, healthcare, or critical infrastructure are subject to specific requirements and demand an adapted approach. Adherence to statutory requirements and industry-specific standards significantly shapes the planning, execution, and documentation of tests.
📋 Special regulatory requirements:
🏦 Industry-specific considerations:
🔍 Adapted testing methodology:
📊 Special documentation requirements:
⚖ ️ Challenges and approaches:
🔐 Heightened security requirements for penetration testers:
How can organizations build a sustainable internal penetration testing program?
Building a sustainable internal penetration testing program requires a strategic approach that integrates continuous security testing into the corporate culture and processes, ensuring a consistently high security standard over the long term.
🏗 ️ Foundations for program development:
👥 Team structure and development:
🛠 ️ Methodology and processes:
📊 Program governance and measurement:
🔄 Annual program cycle:
⚖ ️ Balance between internal and external testing:
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