Locking it down. Microsoft's acquisition of CyberX solidifies the company's Windows product as an IoT operating system. (Image courtesy of CyberX.) Microsoft, whose Windows product is still the main operating system on desktops, took another step to make its product the operating system of the Internet with its announcement of its acquisition of CyberX, an Israeli Internet of Things (IoT) cybersecurity firm that will complement Microsoft's existing Azure IoT offerings. The...