The international conference “#Webimmunization. How can online social networks create collective resilience against misinformation?” is organized jointly by the research team of the #Webimmunization project and the Kościuszko Institute. The purpose of the event is to raise awareness about the risks arising from online misinformation. This is the first conference organized as part of the #Webimmunization research project which received funding from the EEA Financial Mechanism 2014-2021 through the NCN call IdeaLab (project number: 2019/35/J/HS6/03498). The event is held under the patronage of the Vice-Rector of the Jagiellonian University for Medical College (Cracow, Poland), Prof. dr. hab. Tomasz Grodzicki and the Dean of the Faculty of Health Sciences JUMC, Prof. UJ, dr. hab. Piotr Pierzchalski. Visit our website for more information about the research project #Webimmunization: webimmunization.cm-uj.krakow.pl. You can also follow us on Twitter and Facebook (@webimmunization). The registration to the conference requires you to create a profile on the Ecct.io platform. Your credentials will allow you to log in on the day of the event, watch the sessions of your choice and ask questions to the speakers. Use the Agenda tab to select the sessions you want to attend. Click on the chosen session to watch the live stream and ask questions to the speakers. In case of any questions related to the conference or the #Webimmunization project, do not hesitate to contact us at: agnieszka.lempart@uj.edu.pl.