About me

Steffen WendzelI am head of the smart building security team at Fraunhofer FKIE, Bonn where I also focus on network steganography/covert channels. I started writing computer related books and articles when I was 17 and received my PhD in computer science from the University of Hagen in 2013. I am now also a member of Stegano.net.

Selected Work:
book projects with Wiley-IEEE, Springer-Vieweg, and Galileo Press;
scientific papers at Springer Annals of Telecommunications (ANTE), 37th IEEE LCN, 12th and 13th IFIP CMS;
Talks at the hacking/professional events: TROOPERS, Datenspuren, DFN Workshop, Chaos Singularity (CoSin), MetaRheinMain ChaosDays (MRMCD), VDI Fachkonferenz Industrial IT Security, Chemnitzer Linuxtage (2013 and 2014), Secure Linux Administration Conference (SLAC).

Contact: steffen (at) wendzel (dot) de


Working Experience

  • since 2013: Team leader (IT Security for Building Automation Systems) at the Cyber Defense Group of Fraunhofer FKIE, Bonn, Germany
  • since 2003: Author of CS books and articles
  • 2012-2013: Research assistant at the HSASec group, Augsburg University of Applied Sciences, Germany
  • 2010-2013: Research assistant for the IT4SE (IT for Smart renewable Energy generation and use) project, Augsburg University of Applied Sciences and visiting researcher at the University of Waikato

Research Interests

  • network covert channels and network steganography,
  • building automation / smart city security
  • IT security and security engineering,
  • administration and programming of Linux/Unix/BSD systems,
  • open source project management
  • In addition to computer science I am interested in psychology, university history and campus novels.

Academic Activities (Reviews, Research Abroad/Int'l. Cooperations; Awards, ...)



  • Communications Seminar,
    Fraunhofer Gesellschaft, Leipzig, November 2013.
  • Acquisition Techniques,
    Fraunhofer Gesellschaft, Cologne, September 2013.
  • BACnet Training Certificate,
    MBS GmbH, Augsburg, January 2013.
  • Basics of BACnet Certificate,
    MBS GmbH, Augsburg, July 2012.
  • Leadership Coaching,
    Augsburg University of Applied Sciences, Bavarian Forest, 2011.
  • Workshop Moderation,
    Augsburg University of Applied Sciences, Augsburg, 2011.
  • Rhetoric Course,
    Kempten University of Applied Sciences, Kempten, 2008.
  • Communication and Personality Psychology,
    Kempten University of Applied Sciences, Kempten, 2008.

My projects in the News