"Several studies analysed in this paper show that messenger services facilitate and exacerbate the spread of disinformation. Any solution must make allowances for the complexity with which information spreads. The case studies show that a lack of trust in government is a key factor in the proliferation of disinformation, as is an increase in nationalism and its epiphenomena, including racism, sexism and anti-semitism. Additionally, a general loss of trust in journalism poses a problem. The infodemic surrounding the novel coronavirus highlights the urgency of the topic. A nuanced and comprehensive discourse on disinformation is crucial, and it is no longer adequate to discuss disinformation as a problem predominantly concerning social media platforms and politics. Addressing the issue can only be achieved by a society as a whole: we need broad social discourse and cannot outsource the solution to social media companies alone. This paper includes six recommendations designed to provide guidelines for political decisions and as a basis for further discourse." (Executive summary, page 4)