THE OPEN SOURCE WAY BLOG. Secure, real-time communication technology is an essential requirement for military Internet of Things (IoT) solutions. There are numerous protocols for communication between IoT devices, and between the devices and back-end systems. Messaging solutions should be able to to support these various protocols across heterogeneous, physically distributed systems while enabling the security and integrity of information flows. They should also be highly scalable, able to accommodate potentially hundreds of millions of devices. And since delay or loss of data is not an option, they should feature strict availability and reliability requirements.