You’re probably familiar with the word gaslighting, used to refer to people with the odious habit of lying not merely to cover up their own wrongdoing, but also to make it look as though someone else is at fault, even to the point of getting the other person to doubt their own memory, decency and sanity. You might not know, however, that the term comes from a 1930s psychological thriller play called Gas Light (spoiler alert) in which a manipulative and murderous husband pretends to spend his evenings out on the town with his friends, abandoning his long-suffering wife at home in misery.

Source: Naked Security | Computer Security News, Advice and Research