Rafael Fedler, CTO

Rafael Fedler

Rafael Fedler has been working in IT security since 2011. From 2011 to 2014, he was active in IT security research with a focus on Android security, software security and malware. Since the beginning of 2015, he has been working as a penetration tester, security consultant and Red Teamer. Since then, he has conducted and led a large number of penetration tests and Red Team Exercises in a wide range of organisations from small and medium-sized enterprises (SMEs) to public authorities and DAX 30 companies from various industries.



His expertise focuses on, but is not limited to:

  • Android Security
  • Software Security
  • Web Application Security
  • Windows & Active Directory Security
  • Linux Security
  • Network Security
  • Social Engineering
  • Red Teaming/Red Team Exercises
  • Security Product Evasion & Bypassing

As CTO, he is responsible for the technical-strategic development of NSIDE in cooperation with the management. This includes in particular NSIDE’s own developments in the areas of tooling, software and tradecraft. He is also responsible for the further development of the technical business practice.