This policy setting allows you to audit events generated by user account logon attempts on the computer. Events in this subcategory are related to the creation of logon sessions and occur on the computer which was accessed. For an interactive logon, the security audit event is generated on the computer that the user account logged on to. For a network logon, such as accessing a shared folder on the network, the security audit event is generated on the computer hosting the resource. The following events are included: Successful logon attempts. Failed logon attempts. Logon attempts using explicit credentials. This event is generated when a process attempts to log on an account by explicitly specifying that account's credentials. This most commonly occurs in batch logon configurations, such as scheduled tasks or when using the RUNAS command. Security identifiers (SIDs) were filtered and not allowed to log on. Volume: Low on a client computer. Medium on a domain controller or a network server Default on Client editions: Success. Default on Server editions: Success, Failure. 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. Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\Advanced Audit Policy Configuration\Audit Policies\Logon/Logoff\Audit Policy: Logon-Logoff: Logon (2) REG: NO REGISTRY INFO