Indonesia has witnessed a series of impactful social media activism within 26 years after its reform. While activists use social media to amplify their movements, they also encounter risks of potential surveillance. This study explores the visibility threats that activists face, specifically within the Peringatan Darurat movement in Indonesia. This movement arose in response to the House Representatives' (DPR) efforts to overturn a Constitutional Court (MK) decision that modified the threshold requirements for regional head nominations. Data was gathered through digital ethnography, with two months of observation on various activist accounts on X and TikTok. Additionally, interviews with eight activists from this movement were conducted to enrich the findings. The study reveals how activists, drawing from past experiences, anticipate potential surveillance and intervention, which leads them to adopt self-surveillance practices.

Keywords: social media activism, surveillance, visibility, self-surveillance