TikTok: its the social media app which has come to define our perception of Gen Z, and which has firmly embedded itself within the covid-era zeitgeist. A phenomenally popular platform, more than a billion users scroll through its endless feeds, and its turned ordinary people into overnight internet stars. But theres another side to the worlds most popular app: from racist feeds that erase people of colour, to videos promoting eating disorders, theres problematic content beneath the platforms playful exterior. Meanwhile, are the many techniques TikTok is using, including facial recognition, a threat to data security? It may be time to look beyond the dance videos and recognise whats going on behind the fun façade.