Apache Kafka is an open-source distributed event streaming platform used by thousands of companies for high-performance data pipelines, streaming analytics, data integration, and mission-critical applications.

Apache Kafka 4.2.X

You are viewing documentation for an older version (4.2) of Kafka. For up-to-date documentation, see the [latest version](https://kafka.apache.org/43/).

# Security

* * *

##### [Security Overview](/book/reader/apache-kafka-4-2-x/security-overview)

Security Overview

##### [Listener Configuration](/book/reader/apache-kafka-4-2-x/listener-configuration)

Listener Configuration

##### [Encryption and Authentication using SSL](/book/reader/apache-kafka-4-2-x/encryption-and-authentication-using-ssl)

Encryption and Authentication using SSL

##### [Authentication using SASL](/book/reader/apache-kafka-4-2-x/authentication-using-sasl)

Authentication using SASL

##### [Authorization and ACLs](/book/reader/apache-kafka-4-2-x/authorization-and-acls)

Authorization and ACLs

##### [Incorporating Security Features in a Running Cluster](/book/reader/apache-kafka-4-2-x/incorporating-security-features-in-a-running-cluster)

Incorporating Security Features in a Running Cluster

Last modified February 16, 2026: [Add 4.2 documentation and javadocs (#785) (956020bebd)](https://github.com/apache/kafka-site//commit/956020bebdb052aacfe7eef1c5421855c78639ee)

Security

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Incorporating Security Features in a Running Cluster

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Security

Security Overview

Listener Configuration

Encryption and Authentication using SSL

Authentication using SASL

Authorization and ACLs

Incorporating Security Features in a Running Cluster

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