Explaining MQTT security's importance for IoT systems and common pitfalls IoT vendors should avoid to build more secure systems.

We will use Redis as the authentication data source storage database, explain how to connect to EMQX Cloud, and realize one-computer-one-secret authentication at the client-side.

This article presents the data security mechanism of EMQX Cloud in five aspects: infrastructure, data communication, authentication and verification, permission management, and privacy data security.