It also specializes in securing sporting, business and recreational events. G4S describes itself as “the world’s leading global security and outsourcing group,” specializing “in outsourcing of business processes in sectors where security and safety risks are considered a strategic threat. ” The British multinational security giant was set up in 2004 when London based company Securicor amalgamated with Danish business Group 4 Falck. Currently, G4S employs more than 620,000 people, which makes it the third biggest employer in the private sector globally. In 2012 G4S turned over well over $12 billion. The company offers a range of services, including the supply of security personnel, monitoring equipment, response units and secure prisoner transportation. G4S also works with governments overseas to deliver security. The revolution brought on by wireless technologies, smart phones, and mobile apps have changed all of that. Today, home security systems can still sound alarms, but are much more difficult to forget about or foil. A software supported security system can send you a text message every time a door or window is opened, whether you’ve armed it or not. It can stream live video or send still images of what’s happening in your garage, living room, backyard or wherever you deploy a security camera.