recommended reading, or at least glancing through (not kidding), some very interesting background
Fear, uncertainty and doubt - Wikipedia
I thought FUD (Fear, Uncertainty and Doubt) was a term coined in light of political attack ads. Turns out, it first became widely used to describe campaigns by computer hardware and software incumbents (i.e, IBM, Microsoft) to try to avoid new products from smaller companies from gaining sales.
I also very much like the alternative definition of FUD, Fear, Uncertainty and Disinformation.