Find My network is an encrypted and anonymous network of Apple devices that help locate your device. Like location sharing, this setting is optional and not required for locating the device.

The Apple Watch can not only help you find a lost or stolen iPhone, but also track the missing device if it's hidden nearby.

News Researchers hack Bluetooth devices so they can be trackable in Apple’s Find My The nRootTag hack can be performed remotely and doesn't require administrator privilege, which is a little scary.