Wiktionary
counterknowledge
n. misinformation packaged to look like fact.
Wikipedia
Counterknowledge
Counterknowledge: How We Surrendered to Conspiracy Theories, Quack Medicine, Bogus Science and Fake History is a polemic by British writer and journalist Damian Thompson which examines the dissemination and reception of fringe theories. It was published on 1 January 2008 by Atlantic Books and is Thompson's third book.