Dr Jon Roozenbeek is a postdoctoral researcher at Cambridge University’s Department of Psychology. His research focuses on misinformation, polarisation and information warfare. As part of his work he has helped develop numerous interventions aimed at countering misinformation, such as the online “fake news” games Bad News and Go Viral. He is currently writing two books with Cambridge University Press, one about the psychology of misinformation and another about information warfare and propaganda in Russia and Ukraine.