Home security solutions are also getting a boost from remote communications. Google followed up its $3.2 billion acquisition of Nest by purchasing DropCam last week for $555 million. The firm makes internet-connected CCTV cameras for the home. And LIFX of Los Altos, California, which makes wireless LED lighting systems, will use the Nest thermostat's "home" and "away" modes – which can be activated remotely via smartphone – to make lights go on and off around the home and give the impression the house is occupied.