Techniques for providing security and rights management in a machine-to-machine messaging system are provided, such as a computing device, a method, and a computer-program product for detecting unauthorized message attempts. For example, the method may receive a communication sent from a first Internet of Things (IoT) device and destined for a second IoT device. The first IoT device is assigned a first universally unique identifier, and the communication includes a second universally unique identifier assigned to the second IoT device. The method may further include obtaining the second universally unique identifier, determining that the second universally unique identifier is assigned to the second IoT device, and determining, using the second universally unique identifier, that the communication received from the first IoT device is an unauthorized message attempt by the first IoT device to exchange a message with the second IoT device.