You have a Microsoft Sentinel workspace collecting logs from 100 Windows Server virtual machines. To find failed sign-in (logon) events in the collected data, which table should you query?

The correct table to query for failed sign-in events from Windows Server virtual machines in Microsoft Sentinel is SecurityEvent. This table stores Windows security event logs, which include logon/logoff events (Event ID 4625 for failed logons). SigninLogs is incorrect because it primarily contains Azure Active Directory sign-in activity, not Windows Server local sign-in events. SecurityIncident is incorrect as it stores information about incidents detected by Sentinel, not raw security events. AuditLogs is incorrect because it typically contains Azure AD audit activity, such as changes made to Azure AD resources, not Windows Server logon events.