There are a staggering number of M2M gateways on the market. In some cases, gateways are designed and marketed for specific use-cases, such as in-vehicle connectivity and fleet management, sensor data aggregation and telematics, and home automation and management. Others are meant to provide failover cellular connectivity for a satellite office or kiosk. Over the last several years, Carve has researched gateway security, analyzing dozens of devices from various manufacturers. Throughout the process, we’ve disclosed numerous vulnerabilities and worked with the vendors to fix or control the issues we raise.