https://www.microsoft.com/en-us/trustcenter/security/azure-security

https://docs.microsoft.com/en-us/azure/security/security-azure-encryption-overview

https://spark.apache.org/docs/2.2.0/security.html

https://docs.qubole.com/en/latest/security-guide/hive-hadoop-security-azure.html

https://hortonworks.com/blog/best-practices-in-hdfs-authorization-with-apache-ranger/

https://www.cloudera.com/documentation/enterprise/5-14-x/topics/hive_security_intro.html

https://aws.amazon.com/security/

https://spark.apache.org/docs/latest/security.html