MBATricks

Fear, uncertainty and doubt (FUD) is a tactic used in sales, marketing, public relations, politics and propaganda.
FUD is generally a strategic attempt to influence public perception by disseminating negative and dubious/false information designed to undermine the credibility of their beliefs.

An individual firm, for example, might use FUD to invite unfavorable opinions and speculation about a competitor’s product; to increase the general estimation of switching costs among current customers; or to maintain leverage over a current business partner who could potentially become a rival.

Source: Wikipedia