Bluetooth Low Energy in smartphones, fitness monitors and iBeacons

Source : https://www.google.com.pk/search?q=Researchers+Raise+Privacy+Concerns+about+Bluetooth+Low+Energy+in+Smartphones,+Fitness+Monitors+and+iBeacons&biw=1360&bih=633&source=lnms&tbm=isch&sa=X&ei=siZfVa21EIGtsgG8-YHADQ&ved=0CAgQ_AUoAw#tbm=isch&q=Bluetooth+Low+Energy+in+Smartphones%2C+Fitness+Monitors+and+iBeacons&imgrc=B_xE99hRSHPSKM%253A%3BnqBWU9h1wOrRbM%3Bhttp%253A%252F%252Fmarketingland.com%252Fwp-content%252Fml-loads%252F2014%252F07%252Flocation-mobile-smartphone-ss-rectangle-1920.png%3Bhttp%253A%252F%252Fmarketingland.com%252Fbeacon-supplier-estimote-develops-microlocation-stickers-97185%3B1920%3B1553