Wireless and Mobile Device Security, 2nd Edition

Anywhere, Anytime, on Anything

Newly emerging smartphones differed from their predecessors because they bristled with features and functions such as an array of sensors including an accelerometer, a gyroscope, a compass, a proximity sensor, a thermometer, GPS for accurate location, distance, and speed traveled, as well as a flashlight, camera, a microphone, barcode/QR code readers, and a video/voice recorder. Indeed, later models added even more functions such as a pedometer, a barometer, a heart-rate sensor, as well as fingerprint and face recognition functions (and in one vendor’s phone, a Geiger counter). This vast array of inbuilt functionality meant that developers had a treasure trove of possibilities when it came to dreaming up potential ...