SharkFest'26 Europe

André is a senior Performance Consultant and troubleshooter at Rabobank, and has been analyzing packets for over 30 years. He started his career as a troubleshooter for network issues, both hard- and software, and later specialized in performance testing, which requires a combination of in-depth knowledge of networking protocols and coding skills. André also contributed to the Wireshark project.

Jean-Paul has been working as a System and Network Engineer for 40 years. Since 2010, he runs his own company and is mainly focused on network training and consultancy. He is the author of several books for the French publisher ENI: VPN, IPv6, Cisco ASA, Postfix. He was also recently asked by the French company Techniques de l’Ingénieur to write several articles about VPNs for their Encyclopedia. He regularly gives training sessions on Wireshark and other network-related topics. As a certified trainer, he also delivers training about VPNs and network security for WatchGuard resellers and clients

Katherine is a tech professional with 4 years of experience, having retrained in her 40s to become a Computer Expert, specialising in System Integration. Originally from New Zealand, she is currently based in Germany. During her training, she undertook a practicum at SevenShift, a boutique IoT cybersecurity company in Cologne that recognised her talent and dedication, ultimately hiring her. She is now employed there, where she is honing her skills and contributing to the company's security initiatives. Outside of her professional life, Katherine is a dedicated single mother to a teenager. She is a member of the Haecksen, the FINTA branch of the CCC, and a Chapter Leader of OWASP Cologne.

Luca Deri is the leader of the ntop project (www.ntop.org), aimed at developing an open-source monitoring platform for high-speed traffic analysis and cybersecurity. He worked for the University College of London and IBM Research, before receiving his PhD at the University of Berne with a thesis about software components for traffic monitoring applications. Well-known in the open-source and Linux community, he currently shares his time between the ntop project and the University of Pisa where he has been appointed as a lecturer in the CS department.

Marcelle brings over twelve years of experience in cybersecurity, and her journey has taken her through some of the most elite teams in the field, including Secureworks Counter Threat Unit (CTU) and the Equinix Threat Analysis Center (ETAC). She's a security consultant, threat researcher, educator, and intel analyst with deep expertise in cyber threat intelligence, digital forensics, intrusion analysis, security operations, and technical writing.

She has contributed to both government and private sector initiatives, bringing a well-rounded perspective to cyber defense and threat research. Before transitioning into cybersecurity, Marcelle led operations and managed complex projects across various industries.

A frequent speaker at conferences and training events, Marcelle is deeply committed to advancing the cybersecurity field and empowering the next generation of professionals.

Megumi Takeshita, packet otaku, runs a packet company, ikeriri network service in Japan. Ikeriri offers services such as packet analysis for troubleshooting, debugging, security inspection. Ikeriri is also a reseller of wired/wireless capture and analysis products. Megumi has authored 10+ books about Wireshark and packet analysis. She also instructs Wireshark for Japanese companies, including the Japan Self-Defence Forces and Chuo University, as a lecturer. She is one of contributors to the Wireshark projects including Japanese localization.

Helping customers and engineers to understand problems with communication protocols in their networks.
Debugging communication protocols and analyzing log files for a living and having fun with it.
Finding problems in software since the era of punched tapes.
Currently Freelance

Tom Cordemans is a senior lecturer at the Odisee University of Applied Sciences and a researcher at the DistriNet Research Unit of KU Leuven in Ghent, Belgium with a strong focus on IT, IoT and OT networks. He is a daily user of Wireshark and sharing knowledge and expertise is his trigger to give workshops and presentations.