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Azure HDInsight is a fully managed cloud service that handles maintenance and security updates for you.
Microsoft regularly applies security patches and updates to the underlying infrastructure to ensure that your HDInsight clusters are secure and up to date.
HDInsight will automatically renew the certificates for the managed identities you use for clusters with the Enterprise Security Package (ESP).
Additionally, HDInsight provides a secure and compliant environment for your data processing needs.
Regarding certificate renewals, HDInsight uses SSL/TLS certificates to secure communication between clients and the cluster.
In summary, you can be assured that Azure HDInsight Kafka clusters are regularly maintained and updated with the latest security patches and updates to ensure a secure and reliable service.
For more details, kindly checkout the below documentation:
LDAP certificate renewal | Enterprise security general information and guidelines in Azure HDInsight
Azure HDInsight: Frequently asked questions
Hope it helps. Thankyou