IT-Defense 2020Speakers

Speakers – IT-DEFENSE 2020

Dr. Ryan Johnson

Dr. Ryan Johnson is Director of Research at Kryptowire LLC in McLean, VA. His research interests are static and dynamic analysis of Android apps and reverse engineering. He is a co-founder of Kryptowire LLC.

Stephan Gerling

It was already in 1983 that Stephan Gerling started to make his first experiences in the IT and IT security field using the legendary C64. At first, there were only boot sector viruses, but quickly there was more. He currently deals with IT and OT systems on ships.
Since 1987 he has also been engaged as a firefighter, taking part in more than 1000 operations, in many as an incident commander.

Barry & Han

Barry and Han are regular instructors in the field of locks and physical security at IT-Defense. They will be available with a 'lock table' between the presentations during IT-Defense Wednesday and Thursday. At this table you can learn about locks and lock security and we will provide some practical out of the box think exercises. You will be able to examine the inner working of high-security cilinders by some 'see through models' from Elena Aksenova (Cutaway Snobs).

Han is an experienced lock and cylinder analyst in the range of mechanical / electronic cylinders and lockcases. Due to out of the box thinking, he is able to find the weak spots in these locks. Han works part-time at Assa Abloy testing and improving locks.

Dr. Boris Nikolai Konrad

Dr. Boris Nikolai Konrad was born in Bochum in 1984 and grew up in Hattingen on the Ruhr. Already in his early years he was interested in memory techniques and memory sports.

He successfully studied Physics and Applied Computer Science minoring in Business Administration and Mathematics at TU Dortmund (Germany) and the University of Reading (UK). Boris obtained his doctorate in the specialist field of psychology on the neuronal principles of exceptional memory performance at the Max Planck Institute for Psychiatry and Ludwig-Maximilians-Universität in Munich in 2014. Since then, he has been working at the Donders Institute for Brain, Cognition and Behaviour in Nijmegen (Netherlands) in the “Sleep and Memory” working group.

He regularly presents his research results at international conferences and professional congresses.

At the same time, Boris has been participating in memory sports for years, adding to his long list of successes. Some highlights include:

• eight times team world champion
• four Guinness World Records (e.g. 201 names and faces in 15 minutes)
• several world records in individual categories such as “memorizing words” (280 in 15 minutes)
• winner of the TV show “Deutschlands Superhirn” (ZDF)
• three appearances at the TV show “Wetten, dass...?” in Germany
• appearances in dozens of TV shows around the globe, e.g. twice at “The Brain” (China) in front of more than 100 million viewers

Boris has been a speaker and memory trainer since 2006. In 2016, he was awarded “Certified Speaking Professional” (CSP) by the US National Speakers Association making him part of the elite of professional speakers. He won the 5-Sterne-Rednerpreis in the main category Best Performer Speaker in 2017.

Boris is married with two children. Together with his family, he lives in Kranenburg on the Lower Rhine close to Nijmegen (Netherlands). Besides memory sports, he is also an enthusiastic sport stacker and a fan of the soccer club VfL Bochum. Several times a week he stood on the soccer field himself for many years, as a referee up to the sixth division and an assistant in the fourth division in Westphalia and Bavaria.

Volker Kozok

Lieutenant Colonel Volker Kozok works as a technical officer in the legal department of the German Federal Ministry of Defence and is a proven cyber security expert. For more than 20 years, he has been working in various positions in the IT security of the German Armed Forces. In 2002, he planned and trained the Computer Emergency Response Team of the German Armed Forces.

He is a trained IT forensics expert and conducted the first training courses for computer forensics and incident management in the German Armed Forces.

He is a speaker at both national and international events, lecturing on cyber security and data protection topics, and he focuses on the “dark side of the Internet”, which includes the analysis of hacker attacks, cybercrime and social media attacks.

Since 2002, he has been leading the annual US study tour, where cyber security experts of the German Armed Forces and of the industry exchange views on cyber security with US offices and organizations in a 14-day trip in the United States.

At his annual confidential security conference, the international “Bulletproofhosting & Botnetkonferenz”, national and international representatives of the German Armed Forces, authorities, intelligence services, industry and the hacker scene exchange views on example cases, attacks and ways to react.

Sami Laiho

Sami Laiho is one of the world’s leading professionals in the Windows OS and Security. Sami has been working with and teaching OS troubleshooting, management, and security since 1996.

At Ignite 2018, Sami’s “Behind the Scenes: How to build a conference winning session” and “Sami Laiho: 45 Life Hacks of Windows OS in 45 minutes” sessions were ranked as #1 and #2 out of 1708 sessions!! This was the first time in the history of the conference that anyone has been able to do this.

Before that, at Ignite 2017, the world’s biggest Microsoft event, Sami was evaluated as the Best External Speaker! Also, Sami’s sessions were evaluated as the Best session in TechEd North America, Europe and Australia in 2014, and Nordic Infrastructure Conference in 2016, 2017 and 2019.

Jens Müller

Jens Müller is a PhD student at the Chair for Network and Data Security, Ruhr University Bochum. His research interests are legacy protocols and data formats, for which he loves to investigate what could possibly go wrong in a modern world. He has experience as a speaker on international security conferences (BlackHat, USENIX, IEEE S&P, OWASP) and as a freelancer in network penetration testing. In his spare time, he develops free software, for example tools related to network printer exploitation.


Grégoire Ribordy

Grégoire Ribordy studied physics at the Swiss Federal Institute of Technology in Lausanne, where he obtained his master in 1995 with a specialization in optics. Passionate about applications of science and technology, he then decided to join industry and had the opportunity to work in the R&D department of Nikon Corp. in Tokyo, Japan. During his 18 months stay in this country, Ribordy also learnt to speak Japanese.
Upon his return to Switzerland, Ribordy decided to go back to academia to obtain his PhD, but he was careful to select a research group with strong ties to applications and from which start-ups had already been spun off. He thus joined the Group of Applied Physics of University of Geneva and worked in the field of quantum cryptography under the guidance of Prof. Nicolas Gisin and Hugo Zbinden. After obtaining his PhD in 2000, he decided to start a company in October 2001– ID Quantique – to pursue the commercial opportunities of quantum technologies in the field of secure communications.
The company was the first to bring products such as quantum random number generators and quantum cryptography to the market. In 2007 in a world premiere, ID Quantique’s quantum cryptography solution was used to secured communication between two datacenters in Geneva, Switzerland. ID Quantique currently has a staff of about 50 employees and is the world leader in the field of quantum-safe cryptography.
In October 2016, Ribordy has been appointed to the High-Level Steering Group set up by the European Commission to provide advice on its Quantum technologies strategy.
In October 2017, Ribordy, along with other ID Quantique co-founders Profs. Nicolas Gisin and Hugo Zbinden, received the Innovation Medal of the University of Geneva. More recently, in September 2018, he has been selected as one of the 100 Digital Shapers (people who lead digitalization of the country) in Switzerland.
Ribordy has co-authored more than 25 scientific papers and is listed as an inventor on more than 10 patents. Ribordy is also the recipient of several awards for technology entrepreneurship such as the 2001 New Entrepreneurs in Technology and Science Prize or the 2002 de Vigier Award for Young Swiss Entrerpreneurs.

Yuval Ron

Yuval Ron is a Master's student for Computer Science at the Technion - Israel Institute of Technology. He is a speaker at both national and international conferences, such as Black Hat, BSides and OWASP Global AppSec.

As part of his thesis work, Yuval is researching vulnerabilities in virtual assistant software of multiple vendors with the goal of providing secure design guidelines and tools for early detection of such vulnerabilities. For his findings, Yuval was acknowledged several times on the MSRC's public researchers website. Yuval holds a B.Sc. in Software Engineering.

David Rupprecht

David Rupprecht received his B.Eng. in Computer Science and Telecommunications from the University of Applied Sciences for Telecommunications Leipzig, Germany, in 2012. He continued his studies with a focus on IT Security, Networks, and Systems and received his master’s degree 2015 from the Ruhr-University Bochum, Germany. Since 2015, David Rupprecht is a doctoral student at the Information Security Group of the Horst Görtz Institute for IT Security, Bochum. His research interests include mobile network security with a focus on access networks. His work explores implementation as well as specifications flaws in current and future mobile networks. In his daily work, he makes use of software-defined radios for the implementation of attacks and countermeasures.

Amichai Shulman

Amichai Shulman is a cyber security researcher, entrepreneur and investor. Amichai carries more than 25 years of cyber security experience in military, government and commercial environments. He co-founded Imperva in 2002 and served as CTO for the company over 15 years, driving innovation and thought leadership. For the past 18 years Amichai has been involved in leading thought in the cyber security industry through research. He regularly talks in top tier conferences including RSAC, InfoSec and Black Hat and his research and commentary gets published in industry magazines such as The Register, Dark Reading and even general press such as New York Times. Amichai accompanied successfully a number of startup companies as a seed investor and advisor (including SkyFence and Lacoon) and is currently an advisor and board member for a number of cyber security startup companies. Amichai is also an Adjunct Teacher in the Technion Institute of Technology where he teaches cyber security for undergraduate college students and conducts independent research. Amichai holds a B.Sc and M.Sc in Computer Science.


Lance Spitzner

Lance Spitzner is Director at SANS Security Awareness. He has over 20 years of security experience in cyber threat research, security architecture and awareness and training. He helped pioneer the fields of deception and cyber intelligence with his creation honeynets and founding of the Honeynet Project. In addition, Lance has published three security books, consulted in over 25 countries and helped over 350 organizations build awareness programs to manage their human risk.  Lance is a frequent presenter, serial tweeter (@lspitzner) and works on numerous community security projects.  Before information security, Mr. Spitzner served as an armor officer in the Army's Rapid Deployment Force and earned his MBA from the University of Illinois.

Dr. Angelos Stavrou

Dr. Angelos Stavrou founded Kryptowire LLC, and he is an Associate Professor at George Mason University (GMU) and the Director of the Center for Assurance Research and Engineering (CARE) at GMU.

Jayson E. Street

Jayson E. Street is an author of Dissecting the hack: series. Jayson is also the DEF CON Groups Global Ambassador. Plus the VP of InfoSec for SphereNY. He has also spoken at DEF CON, DerbyCon, UCON and at several other CONs and colleges on a variety of information security subjects.  He is a highly carbonated speaker, who has partaken of Pizza from Beijing to Brazil. He does not expect anybody to still be reading this far but if they are, please note he was chosen as one of Time’s persons of the year for 2006.

Joshua Tiago

After having completed his training as an industrial electronics technician, he acquired the title "certified engineer" in the field of electrical engineering with a focus on information technology.

From 2005 to 2010 he worked as a software development engineer for database-driven web applications and other web technologies. Back then, security aspects had already played a vital role in his work. He acquired profound knowledge of various programming languages (PHP, ASP.NET, C#). Another focus of his job was the source code analysis of web applications.

Joshua Tiago is managing consultant and has been working at cirosec since 2011, further improving his skills in the fields of security assessments and penetration tests of web applications in numerous projects and conducting source code analyses.

Moreover, he develops secure coding guidelines for web applications.

He also advises developers and IT architects on the proper implementation of cryptographic algorithms, and he carries out projects in the reverse-engineering field.

Furthermore, Joshua Tiago is one of the instructors of the cirosec trainings “Hacking Extreme Web Applications” and “Forensics Extreme”.
He is the author of several professional articles, which have been published in magazines like iX.

Dr. Paul Vixie

Dr. Paul Vixie is an internet pioneer. Currently, he is the Chairman, CEO and Cofounder of award-winning Farsight Security, Inc. Dr. Vixie was inducted into the internet Hall of Fame in 2014 for work related to DNS and anti-spam technologies. He is the author of open source internet software including BIND 8, and of many internet standards documents concerning DNS and DNSSEC. In addition, he founded the first anti-spam company (MAPS, 1996), the first non-profit internet infrastructure company (ISC, 1994), and the first neutral and commercial internet exchange (PAIX, 1991). In 2018, he cofounded SIE Europe UG, a European data sharing collective to fight cybercrime. Dr. Vixie earned his Ph.D. from Keio University for work related to DNS and DNSSEC in 2010.

Dr. Hubert Zitt

Dr. Hubert Zitt is a lecturer for the Computer Science degree course at Hochschule Kaiserslautern (University of Applied Sciences) at the campus in Zweibrücken. He studied electrical engineering at Hochschule Kaiserslautern and then at Saarland University, where he also gained his doctorate at the chair of systems theory of electrical engineering. During his doctorate he was already appointed deputy professor at the University of Applied Sciences in Zweibrücken in 1999; since then he has been teaching there in the field of technical computer science.
He has made a name for himself as an author of specialist books on telephone technology, ISDN and DSL since 1996. In 2007, Hubert Zitt received the Lehrpreis award from the state Rhineland-Palatinate in the subject group engineering sciences including a price money of 10,000 euros. He was appointed as a visiting professor to the University of the Incarnate Word in San Antonio, Texas in 2018, where he taught the subjects physics and programming languages for one semester.
Besides his "normal” teaching activities, Hubert Zitt became known throughout Germany for his Star Trek lectures. He gave his first lecture on Star Trek in 1996 as a Christmas lecture at the University of Applied Sciences in Zweibrücken. Since 2005, he has been giving Star Trek lectures in other cities as well, mostly at universities but also at science fiction conventions such as FedCon, Europe’s biggest Sci-Fi convention. Together with the son of the inventor of Star Trek, Gene Roddenberry jr., Hubert Zitt wrote the preface for the book “Star Trek in Deutschland” in 2008. One whole semester he taught “Physics of Star Trek” as a regular course at the above-mentioned University of the Incarnate Word in the fall of 2008. In the Kabel1 television show “Beam me up! – Die große Star Trek Show” from the year 2009, Hubert Zitt appeared as a guest and explained the techniques of beaming and of the warp drive. By now, Hubert Zitt has already given more than 350 Star Trek lectures. At developer symposia of large companies, his presentations – in which he always shows and interprets film clips about technical possibilities at Star Trek – often are an inspiration to the employees.

Prof. Dr. Thomas Hoeren



Theology and law studies in Münster, Tübingen and London


Church licentiate degree in theology


First State Examination in Law


Second State Examination in Law


Doctorate at the University of Münster (title of dissertation: “Software Licensing as a Product Purchase”)


Habilitation at the University of Münster (title of habilitation: “Self-regulation in Bank and Insurance Law”)

until 1997

Editorial member of the journal “Computer und Recht”

until 2004

Co-editor of the journals “Informations and Communications Technology Law” and “EDI-Law Review”


Co-editor of the journals “Zeitschrift für Rechtstheorie” and “International Journal of Law and Information Technology” (Oxford University Press)

since June 1993

Legal Adviser to the European Commission/DG XIII on the “Legal Advisory Board on Information Technology”


Professor at the Law Faculty of the Heinrich-Heine University Düsseldorf (Professorship for Civil Law and International Business Law)


Member and vice chairman of Deutschen Gesellschaft für Recht und Informatik e.V.


Judge at the Court of Appeal (Oberlandesgericht) Düsseldorf

since April 1997

Professor at the Law Faculty of the Westfälische Wilhelms-University Münster

since 1998

Co-editor of the journal “Multimedia und Recht”

since June 2000

WIPO Domain Name Panelist and arbitrator for the allocation of .eu domains


Research Fellow at the Oxford Internet Institut/Balliol College

since 2004

Director of the European Research Center for Information Systems (ERCIS)        


Guest lecturer at the Berkman Law Center of Harvard Law School

since 2005          

Lecturer at the Academy of Art Münster, focusing on copyright law and art trade law


Honored with the ALCATEL-SEL Research Award “Technical Communication”


Member of the Technical Committee for Copyright and Publishing Law of the German Association for Intellectual Property and Copyright Protection

since 2006

Liaison lecturer at the Studienstiftung des Deutschen Volkes

since 2012

Adjunct Professor at the Fraunhofer Institute for Applied Information Technology (FIT)


Dean of the Faculty of Law at the University of Münster


Adjunct Professor at the Fraunhofer Institute for Applied Information Technology (FIT)

since 2016

Member of the European Academy of Sciences and Arts

since 2017

General Reporter of the league for competition law


Honored with the award for German-Dutch scientific cooperation


Awarded the Daidalos silver coin by the Studienstiftung des Deutschen Volkes