Ideally, we want to resist mis/disinformation but not evidence. If this is so, we need accounts of misinformation and disinformation to match the epistemic normative picture developed so far. This chapter develops a full account of the nature of disinformation. The view, if correct, carries high-stakes upshots, both theoretically and practically. First, it challenges several widely spread theoretical assumptions about disinformation – such as that it is a species of information, a species of misinformation, essentially false or misleading, or essentially intended/aimed/having the function of generating false beliefs in/misleading hearers. Second, it shows that the challenges faced by disinformation tracking in practice go well beyond mere fact checking. I begin with an interdisciplinary scoping of the literature in information science, communication studies, computer science, and philosophy of information to identify several claims constituting disinformation orthodoxy. I then present counterexamples to these claims and motivate my alternative account. Finally, I put forth and develop my account: disinformation as ignorance-generating content.