Ensure No Auditing for 'Audit Policy: Policy Change: Other Policy Change Events' This subcategory reports other types of security policy changes such as configuration of the Trusted Platform Module (TPM) or cryptographic providers. Events for this subcategory include: - 4909: The local policy settings for the TBS were changed. - 4910: The group policy settings for the TBS were changed. - 5063: A cryptographic provider operation was attempted. - 5064: A cryptographic context operation was attempted. - 5065: A cryptographic context modification was attempted. - 5066: A cryptographic function operation was attempted. - 5067: A cryptographic function modification was attempted. - 5068: A cryptographic function provider operation was attempted. - 5069: A cryptographic function property operation was attempted. - 5070: A cryptographic function property modification was attempted. - 5447: A Windows Filtering Platform filter has been changed. - 6144: Security policy in the group policy objects has been applied successfully. - 6145: One or more errors occurred while processing security policy in the group policy objects. Refer to the Microsoft Knowledgebase article "Description of security events in Windows Vista and in Windows Server 2008" for the most recent information about this setting: http://support.microsoft.com/kb/947226. Counter Measure: Enable Audit policy settings that support the organizational security policy for all the computers in your organization. Identify the components that you need for an audit policy that enables your organization to hold users accountable for their actions while using organizational resources and enables IT departments to detect unauthorized activity efficiently and then track those events in log files. Potential Impact: If no audit settings are configured, or if audit settings are too lax on the computers in your organization, security incidents might not be detected or not enough evidence will be available for network forensic analysis after security incidents occur. However, if audit settings are too severe, critically important entries in the Security log may be obscured by all of the meaningless entries and computer performance and the available amount of data storage may be seriously affected. Companies that operate in certain regulated industries may have legal obligations to log certain events or activities.

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(1) GPO: Computer ConfigurationWindows SettingsSecurity SettingsAdvanced Audit Policy ConfigurationAudit PoliciesPolicy ChangeAudit Policy: Policy Change: Other Policy Change Events