From January 2025 to October 2025, G. L. Giardini and A. Bolpagni have been monitoring and analysing the presence of the pro-Islamic State (IS) ecosystem on TikTok, especially focusing on the dissemination of IS propaganda within the social network platform. Through day-by-day monitoring using Digital Human Intelligence (Digital HUMINT) techniques, more than 270 seed accounts have been identified. The latter, which are pro-IS accounts actively sharing propaganda material, have been functional to the reconstruction of a network characterised by more than 100,000 users.