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    Hadoop Poses a Big Data Security Risk: 10 Reasons Why

    By
    Chris Preimesberger
    -
    April 23, 2013
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      1Hadoop Poses a Big Data Security Risk: 10 Reasons Why

      1

      by Chris Preimesberger

      2Hadoop Wasn’t Designed for Enterprise Data

      2

      Like much ground-breaking IT (such as TCP/IP or Unix), Hadoop wasn’t originally built with the enterprise in mind, let alone enterprise security. Hadoop’s original purpose was to manage publicly available information such as Web links, and it was designed to format large amounts of unstructured data within a distributed computing environment, specifically Google’s. It was not written to support hardened security, compliance, encryption, policy enablement and risk management.

      3Hadoop’s Security Relies Entirely on Kerberos

      3

      Hadoop does utilize Kerberos for authentication. However, this protocol can be difficult to implement, and it doesn’t cover a number of other enterprise security requirements, such as role-based authentication, LDAP and Active Directory for policy enablement. Hadoop also doesn’t support encryption on nodes or on data in transit between nodes.

      4Hadoop Clusters Consist of Many Nodes

      4

      Traditional data security technologies have been built on the concept of protecting a single physical entity (like a database or server), not the uniquely distributed big data computing environments characterized by Hadoop clusters. Traditional security technologies are not effective in this type of distributed, large-scale environment.

      5Traditional Backup/Disaster Recovery Isn’t the Same in Hadoop

      5

      The distributed nature of Hadoop clusters also renders many traditional backup and recovery methods and policies ineffective. Companies using Hadoop need to replicate, back up and store data in a separate, secured environment.

      6Hadoop Is Rarely Used Alone

      6

      To reap the benefits of big data, Hadoop is used in conjunction with other technologies such as Hive, HBase or Pig. While these tools make big data accessible and usable, most also lack any real enterprise-grade security. Hardening Hadoop itself is only one part of the big data security challenge.

      7Compliance Mandates Still Apply in Big Data Workloads

      7

      Big data doesn’t come with a separate set of regulations and mandates. Regardless of the IT used to store and manage data, enterprise organizations must still comply with regulatory requirements for data privacy and security such as HIPAA (health care), PCI (credit industry) and SOX—even though approved traditional security technologies fail to fully address the challenges of big data environments.

      8Cost of a Breach Undetermined

      8

      So far, no one has been able to put an accurate number on how much a security breach can cost an organization. Without thoroughly evaluating its security coverage, an enterprise cannot assess its security weaknesses nor determine exactly how much to spend on security coverage.

      9Big Data Users on Their Own With Security

      9

      Best practices for companies with Hadoop clusters include implementing additional access controls and limiting the number of personnel allowed to access the cluster.

      10Additional Steps Needed to Protect Data Cluster

      10

      This will be the case until IT that addresses the vulnerabilities of a Hadoop environment is made available. Organizations must regularly scan their cluster environment for vulnerabilities. They also must make it a best practice to replicate and back up data while storing it in a separate secured environment.

      11Hadoop Users Must Keep Up to Date

      11

      As large data load batch processing becomes mainstream in the enterprise, new IT is coming out all the time—from established companies as well as startups—that is designed to make big data workloads more useful for businesses. Best practices for IT managers should always include regular visits to sites such as eWEEK, which covers all these relevant sectors of big data IT: security, storage, servers and data center systems as a whole.

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