The USK team organizes the testing and classification process, paving the way for youth protection in digital games and apps – online and offline. Get to know our team and get in touch with us!

Managing Director

Elisabeth Secker

Elisabeth has been Managing Director of the Entertainment Software Self-Regulation Body (USK) since January 2018. As part of her work, she is involved as a member of the International Age Rating Coalition (IARC) board for age ratings for online games and apps. Previously, she was deputy head of youth media protection at “die medienanstalten,” the umbrella organization of Berlin’s 14 state media authorities. Elisabeth Secker is also active as a member of the advisory board of the Digital Games Culture Foundation and on the Safer Advisory Board of an international games platform.
Deputy Managing Director & Legal Counsel

Lorenzo von Petersdorff

Lorenzo has been Deputy Managing Director & Legal Counsel of Unterhaltungssoftware Selbstkontrolle (USK) since December 2019. Since November 2018, he has been responsible for managing the division. Before joining USK in 2015, Lorenzo, who holds a law degree, gained experience at well-known companies in the media industry. Lorenzo is also active as a deputy member of the advisory board of the Digital Games Culture Foundation.
Head of Test Department (Classic & IARC)

Marek Brunner

Marek graduated in media informatics and became the first game tester of the USK in 1994. In 2003, he took over the management of the entire testing department. His tasks include the coordination of the area, the technical preparation of the games, the training and selection of the reviewers, and the quality assurance of the game presentations. Since 2007, he has been responsible for the merged testing area for IARC & JuSchG procedures.
IARC Tester

Johanna Baier

Johanna holds a Master’s degree in Museum Management and Communication from the Berlin University of Applied Sciences. Previously, she studied Classical Archaeology and Cultural Studies at the Humboldt University in Berlin. Before joining USK in September 2021, Johanna worked at the Ethnological Museum Berlin and completed further training on data management and data protection. Now she takes care of quality assurance within the IARC system.
IARC Tester

Daniel Schaaf

Daniel studied sociology (M.A.) at the Friedrich Schiller University in Jena. After his studies, he worked in Lisbon in the field of content moderation. Since September 2021, he has been supporting the USK team in quality assurance within the IARC system.
Testing Department

Lara Schulze

Lara studied German Linguistics at Humboldt University in Berlin. Since 2017, she has been an employee in the testing department of the USK and is mainly responsible for the technical preparation of games and the implementation of simplified testing procedures.
Project Manager

Björn Jahn

Björn studied Digital Media Cultures at the Babelsberg Film University and has since focused his media science work on video games. Since mid-2017, he has been working as a project manager in the department. Here he looks after the USK members, realizes implementations in technical youth protection, and works on internal projects of the USK.
Online Youth Protection Consultant

Konrad Emus

Konrad studied Slavic Cultures / Russian Studies at Humboldt University in Berlin and later Business Communication at BBW University in Berlin. From 2016 to 2020, he worked as a project and event manager in the medical industry. Here he gained experience in the organization and implementation of international conferences and member and sponsor support. Since March 2021, Konrad has been supporting the division as a consultant for online youth protection. In this role, he supports member companies in matters relating to the protection of minors and acts as a point of contact for complaints and questions relating to topics relevant to the protection of minors in the online sector.
Assistance to the Permanent Representatives of the Supreme State Youth Authorities

Simone Lieseke

Simone trained as a management assistant in office communication. Before joining the USK in 2003 as an assistant to the Permanent Representatives of the Supreme State Youth Authorities (OLJB), she worked in the office of the USK’s then responsible body, the “Förderverein für Jugend und Sozialarbeit e. V.”. Since 2003, Simone has supported the work of the Permanent Representatives of the OLJB at the USK and, since 2021, has been the coordinator of the USK testing area, responsible for organizing the testing procedures and the committee tests. She is also the contact person for the youth protection experts.
Public Relations

Irina Rybin

Irina studied Sinology in Frankfurt am Main. Since March 2021, she has supported USK as a project manager in public relations. Previously, Irina gained extensive experience in digital marketing with a focus on campaign execution and strategic brand profile development.
IT Department

Tilo Ziller

Tilo studied information electronics/computer science. He worked in areas of mainframe systems for several years before joining USK in 1995. Since then, he has been involved in many projects within the games and media industry and the social sector.

Cordelia Kretzschmar

Cordelia worked at BIU (now game Verband) as a management assistant and in accounting until 2012. Since January 2013, Cordelia has been responsible for financial accounting at USK. Her responsibilities include general invoice management and supporting the USK management in the area of human resources management.
Office Manager

Sascha Gentzen

After his studies and part-time jobs as a tourist guide, Sascha started his first office management position at the game developer Wooga. After working for Veganz and Rocket Internet, he has supported the USK as an Office Manager and at the reception since March 2021. In his role, he is responsible for the smooth running of the USK office and always has an eye on the well-being of his colleagues.