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In recent years, a number of platforms for building Big Data applications, both open-source and proprietary, have been proposed. One of the most popular platforms is Apache Hadoop, an open-source software framework for Big Data processing used by leading companies like Yahoo and Facebook. Historically, earlier versions of Hadoop did not prioritize security, so Hadoop has continued to make security modifications. In particular, the Hadoop Distributed File System (HDFS) upon which Hadoop modulesdoi:10.1007/s11416-014-0236-5 fatcat:5b3nkuceanfqziayuiibf67jle