A closed-circuit television camera looks after an art museum (January 1951 Radio-Electronics) It’s hard to imagine a world before the ubiquitous security camera. In major cities around the world, it’s ...

The circuit was designed to create an early warning alarm system against any form of theft that is significant to the owners of motorcycles or bikes. Mercury Switch – a switch constructed into a ...

Hackers infected 70 percent of storage devices that record data from D.C. police surveillance cameras eight days before President Trump’s inauguration, forcing major citywide reinstallation efforts, ...