Bluetooth is a truly ubiquitous technology. It’s been in billions of devices sold to the general public, and it found its way into mobile phones, cars, printers, speaker systems, PCs, laptops, even expensive industrial equipment. It was used as a tracking mechanism to identify consumer trends early on before the days of stores offering free Wi-Fi that could tap into your GPS to track your every step. It’s an amazing piece of technology. And now it’s arguably the most dangerous, thanks to a broken piece of the Bluetooth specification that makes it an effective attack vector for secure networks.