What a hacker finds, we find first — before the damage is done
Ethical hacking for maximum security
Controlled attack simulations by certified ethical hackers — web apps, networks, cloud, and social engineering.
Anonymized Reference CaseFinancial Services Provider · Frankfurt, 45 employees+
Initial Situation
Annual pentest for regulatory requirements, web application with customer data, no prior security testing.
Solution & Result
Black-box pentest of the web app per OWASP Testing Guide, internal network pentest, social engineering test with phishing campaign.
22 findings (4 critical, 8 high, 10 medium) — incl. SQL injection that had exposed customer data. All remediated, regulatory evidence provided.
Attackers know your systems better than you do — until the attack happens
- Real hackers exploit exactly the gaps your team considers unlikely — pentests show what is actually vulnerable
- SQL injection, IDOR, and misconfigured APIs are not reliably found by scanners — only manual testing by experienced testers
- NIS2, PCI-DSS, and cyber insurers require regular penetration tests with documented findings and remediation
Controlled attack by certified ethical hackers — with a full report
- OSCP-certified testers with real attack experience — not an automated scanner report, but manual creative testing
- Complete kill-chain documentation: from the first gap to potential data access — so your management understands the risk
- Remediation support and free retest after 60–90 days — we ensure the gaps are genuinely closed
Scope of Services
What Penetration Test (Pentest) does for you
Black-Box Test
Attack simulation without prior information — just like a real attacker would proceed.
Web App Pentest
Comprehensive security testing of web applications per the OWASP Testing Guide and WSTG.
Network Pentest
Penetration tests of internal and external network infrastructure including lateral movement.
Cloud Pentest
Security testing of your Azure, AWS, or Google Cloud environment for misconfigurations.
Social Engineering
Phishing campaigns and vishing tests to assess the human security factor.
Detailed Report
Management overview and technical detail report with CVSS scores and proof-of-concept.
Our Approach
How we work
Scoping & Authorization
Defining the test scope, objectives, and obtaining written authorizations for all tests.
Attack Simulation
Execution of penetration tests by certified ethical hackers (OSCP, CEH).
Evaluation
Creation of the final report with management summary and technical details.
Retest
Optional retest after remediation of vulnerabilities to verify the measures taken.
The pentest found a SQL injection in our customer portal that had been there since launch. An attacker would have had access to all customer data. Clouderio found and fixed it before anyone else did.
Attack Methodology
We think like an attacker —
to protect you better
Our testers follow the same kill chain as real attackers. That is the only way to find vulnerabilities that automated scanners miss.
Reconnaissance
OSINT, footprinting, enumeration — gathering all public information
Scanning & Enumeration
Identify ports, services, versions, vulnerabilities
Exploitation
Active exploitation of found vulnerabilities — controlled and documented
Post-Exploitation
Lateral movement, privilege escalation — how far can an attacker get?
Reporting & Remediation
Complete documentation, CVSS scores, remediation guide
Penetration Test Variants
Which penetration test is right for you?
In the scoping call we determine which variant is optimal for your systems and goals.
Black Box
No prior knowledge — just like an external attacker. Maximum realism, highest effort.
Duration: 5–10 days
Ideal for: External infrastructure, web apps
Grey Box
Credentials and structural knowledge known — simulates compromised accounts or insiders.
Duration: 3–7 days
Ideal for: Internal systems, cloud environments
White Box
Full code and architecture access — maximum depth, code analysis included.
Duration: 5–15 days
Ideal for: Critical applications, SDLC
Report Deliverables
Two reports. Two audiences.
Management and IT team need different information. You get both — plus a free retest.
Request penetration testFrequently Asked Questions
Everything you need to know about Penetration Test (Pentest) at a glance.
01What does a penetration test cost?+
A web app pentest for a medium-sized application starts at €4,500 fixed price. Full infrastructure pentests (network + applications) range from €8,000–25,000 depending on scope. After the scoping discussion you receive a binding quote.
02What is the difference between a pentest and a security audit?+
An audit evaluates configurations, policies, and vulnerabilities — it asks "are there gaps?". A pentest simulates a real attack and shows how far an attacker gets — it answers "what can an attacker do with these gaps?". For complete security we recommend both.
03What certifications do your testers hold?+
Our testers hold OSCP (Offensive Security Certified Professional), CEH (Certified Ethical Hacker), and GPEN (GIAC Penetration Tester) certifications. All tests are conducted and supervised by at least one OSCP-certified senior tester.
04Does operations need to be interrupted during the pentest?+
No. Pentests can be conducted during live operations — we coordinate sensitive tests (e.g. load tests) for maintenance windows outside core hours. Exploits that could crash systems are always agreed with you in advance.
05What do I receive as a result?+
Two reports: (1) Management summary for executives and board — risks in plain language. (2) Technical detail report for your IT team — all findings with CVSS score, proof-of-concept, step-by-step description, and concrete remediation recommendation. Both reports are accepted by regulators, NIS2, and insurers.
06How often should a pentest be conducted?+
Recommendation: at least once annually for core infrastructure, after every major release for web applications, after infrastructure changes (cloud migration, new sites). NIS2 and PCI-DSS require regular tests — we advise you on the optimal frequency for your industry.
Free Assessment Workshop — no commitment
In 60 minutes we analyze your current situation and show you concretely which solution makes sense for your business — with a binding offer within 5 business days.