Dan Weston aims to secure an Apache Kafka cluster:
As part of our educational resources, Confluent Developer now offers a course designed to help you apply Confluent Cloud’s security features to meet the privacy and security needs of your organization. This blog post explores the need to implement security for your Apache Kafka® cluster, then briefly reviews the security features and advantages of using Confluent Cloud.
Click through for an overview. The course itself is free, as well.