Abstract:Message Queuing Telemetry Transport (MQTT) is the most widely used protocol within the communication layer of the Internet of Things (IoT). Message brokers are a key component of the MQTT protocol and a single point of failure. Incompatibilities between different MQTT brokers or broker versions with their clients can cause critical failures and become a source of security risks. Thus, every MQTT broker change or update needs to be accompanied by an evaluation of the compatibility between the new and the previo… Show more
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