Cyberspace provides a new battle arena both for state propaganda and for civil society struggles against corruption and authoritarianism. In taking these efforts online, both the state and civil society actors need to adapt their strategies to the affordances of social media to maximise the impact, which can change the very nature of the struggle. This webinar examines how state and civil society interactions in cyberspace affect various ongoing democracy and anti-corruption struggles in Southeast Asia. The webinar features Ms Thieu-Dang Nguyen (University of Aberdeen) who will present on “State-Society Interaction in Cyberspace in the Formosa Crisis: A Counter-Hegemonic Project?”, Mr Muhammad Zamzam Fauzanafi (Leiden University; Gadjah Mada University) will talk about “Digital Affective Citizenship and Anti-Corruption Movement in Indonesia: A Provincial Case”, and Ms Kieu Ngoc Hoang (University of Amsterdam) will discuss “Everyday State Propaganda and Activists’ Strategic Responses on Social Media in Vietnam”. Dr Yatun Sastramidjaja (ISEAS-Yusof Ishak Institute) is the moderator of this webinar.