Information manipulation theory

Information manipulation theory (IMT) is a theory of deceptive discourse production, rooted in H. Paul Grice's theory of conversational implicature. IMT argues that, rather than communicators producing truths and lies, the vast majority of everyday deceptive discourse involves complicated combinations of elements that fall somewhere in between these polar opposites; with the most common form of deception being the omission of contextually problematic information, commonly known as white lies.

Source: Wikipedia — Information manipulation theory (CC BY-SA 4.0)