Transnational cyber threats have become a grave challenge to national security across the globe. With the advances in Information and Communications Technology (ICT), the ways of cyber incidents have become more sophisticated and diversified. So, it is important to establish international norms on cybersecurity for sustainable peace that all UN member states need to comply with to develop an open and secure cyberspace. In this regard, as specified in the resolutions adopted in the 73rd session of the United Nations General Assembly in 2018, the GGE and the OEWG initiated by the US and Russia, respectively, have been established under the auspices of the UN. With these two processes, we have witnessed the conflict of opinions among member states in the field of cyber security. Due to the conflict, the OEWG has had many struggles in the whole process to achieve a consensus. This session brings together experts not only from Korea but also from all over the world to infer views on cyber security and to discuss how the two aforementioned mechanisms can work together effectively and how Member States can contribute to promoting discussion on international cyber security norms.