In Pictures: How Apple's iBeacon works

Apple's iBeacon is already in many iPhones, whether you realise it or not. The technology was rolled out in several Apple store locations back in December, and had many privacy advocates concerned about the implications for user tracking and security. Here's a breakdown of how it works.

iBeacon is an Apple specification that extends location services in iOS to include Bluetooth Low Energy (BLE) devices, specifically a broadcasting BLE radio called a beacon. It has the potential to usher in a new level of interactivity for the mobile user experience. Here’s how it works. In your iPhone, iOS alerts apps when you come in range of a broadcasting iBeacon. The app can monitor location, estimate your distance to the beacon, and define the location based on the BLE signal instead of on GPS. iBeacon is already starting to change the mobile user experience. Here’s how it works.

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