Daniel Nussko IT Security provides penetration testing and security assessment services by independent security researcher Daniel Nussko. According to the website, he has been active in IT security since 2016 and has worked as a freelance penetration tester and security researcher since 2018. He also holds a master’s degree in IT security and certifications including OSCP, OSWP, SC-100, and AZ-500. The service is intended to help clients identify potential vulnerabilities in applications or network infrastructure before attackers do.
Its protection model is closer to project-based security assessment than to a continuous protection product, covering three areas: application security, infrastructure assessment, and IoT security. On the application side, services include penetration testing for web applications, REST/SOAP APIs, and native desktop applications. On the infrastructure side, they include network service identification, vulnerability discovery, misconfiguration analysis, and hardening-gap analysis for internal networks and internet-exposed systems. On the IoT side, they cover device network services, interfaces such as Ethernet/WiFi/Bluetooth/ZigBee, and static firmware analysis. The methodology emphasizes in-depth manual analysis, supplemented by tools and vulnerability scanners. Reports can be delivered in German or English and include risk ratings, remediation recommendations, and an executive summary.
The website does not publicly disclose pricing, project timelines, service packages, or service-level agreements. It only states that users can get in touch for a free consultation, reference cases, or sample reports. Before procurement, buyers should therefore confirm the scope definition, testing window, whether retesting is included, delivery format, and confidentiality and compliance requirements. On the compliance side, the text mentions that assessments can follow standards such as ASVS and OWASP Top 10, but it does not disclose company-level certifications such as ISO or SOC.
The advantages are its clear positioning and suitability for scenarios that require high-quality manual penetration testing. The researcher’s personal credentials and conference speaking experience also strengthen credibility, and the coverage across application, network, and IoT security provides a broad technical scope. The drawbacks are the limited public information available: team size, capacity for concurrent projects, emergency support, payment methods, and contract process are not specified. There is also no information about continuous monitoring, an alerting console, or integrations with vulnerability management platforms, SIEM tools, or ticketing systems.
It is better suited to companies with clearly defined testing objectives, such as pre-launch Web/API security assessments, annual penetration tests, internal network attack-and-defense simulations, or pre-market security reviews for IoT devices. For Chinese customers that need 24/7 managed security operations, automated compliance platforms, or large-scale local delivery, domestic alternatives such as DAS-Security, NSFOCUS, Venustech, and Qi-Anxin may be worth considering. There is no public information on direct access from mainland China, payment convenience, or contract handling, so its access status is rated as unknown.
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nussko.com is an Germany Cybersecurity provider. TG4G tracks its product information, an overall rating of 5.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach nussko.com directly.