> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-admin/9.3-administer/secure-the-pentaho-system/big-data-security.md).

# Big data security

You can choose between two methods of implementing big data security. The security and protection of sensitive data is a major concern of data management today. To assist users in protecting their data, Pentaho provides two methods of implementing security for the Pentaho Server: Kerberos authentication and secure impersonation. Both methods are secure, and require a user to provide proof of identity to securely connect to a cluster.

* [Kerberos authentication versus secure impersonation](/pdia-admin/9.3-administer/secure-the-pentaho-system/big-data-security/kerberos-authentication-versus-secure-impersonation.md)
* [Prerequisites](/pdia-admin/9.3-administer/secure-the-pentaho-system/big-data-security/prerequisites.md)
* [Supported components](/pdia-admin/9.3-administer/secure-the-pentaho-system/big-data-security/supported-components.md)
* [How to enable secure impersonation](/pdia-admin/9.3-administer/secure-the-pentaho-system/big-data-security/how-to-enable-secure-impersonation.md)
* [How to enable Kerberos authentication](/pdia-admin/9.3-administer/secure-the-pentaho-system/big-data-security/how-to-enable-kerberos-authentication.md)


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