The white paper "Securing MQTT: Best Practices for a Robust IoT Ecosystem" by Cirrus Link Solutions highlights essential steps for securing MQTT implementations. Key strategies include using TLS for encrypted data exchange, implementing Access Control Lists (ACLs) with the principle of least privilege, and ensuring robust authentication and authorization mechanisms. The paper also discusses the importance of network infrastructure protection to mitigate DoS attacks and the application of the Purdue/ISA 95 model for layered security. By leveraging tools like Sparkplug, organizations can enhance MQTT security, ensuring a reliable and protected IoT ecosystem.

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