The internet of Things (IoT) is much-talked-about technology. Driven by low-cost sensors, ubiquitous connectivity and updates to the Internet Protocol (IP), IoT is rapidly being adopted. Research firm Gartner expects over 8 billion devices connected in 2017. Cities use IoT to relieve parking congestion by collecting data on open parking spots; farmers can measure moisture in soil; and manufacturers use this technology to track inventory in their supply chain. Because these devices may use machine-to-machine connectivity without human intervention, this can increase the IoT Security Challenge. Here are some security considerations for IoT.