What is disinformation and how can we strengthen reliable information?

81% of Germans consider disinformation to be a threat to democracy and social cohesion. Politicians have also recognized the problem: the new federal government states in its coalition agreement that “digital skills must be strengthened to make our democracy more resilient to disinformation and manipulation” and that “independent media supervision, while safeguarding freedom of expression, must be able to act against the manipulation of information.” But what exactly is disinformation and how does it work?