"Theft Of Electricity" (on the basis that a computer doing something for an unauthorised user would consume more electricity than if that user was not issuing c

"Theft Of Electricity" (on the basis that a computer doing something for an unauthorised user would consume more electricity than if that user was not issuing commands) was one of the first offences used in the UK to prosecute computer hackers in the early 1980s, before specific hacking legislation was introduced. Obviously, not a whole lot of electricity - fractions of a penny, at a time - but enough of a "wrongdoing" to get the case into court.