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Summary

This report is the second in a series on our audit of the Department of Transportation (DOT) headquarters telecommunications network security 1 . These headquarters computer networks are used to support transmission of critical administrative and financial data such as payroll, grant payments, safety statistics and research information throughout DOT. The objectives of the audit were to determine whether: (1) adequate controls are established to prevent, detect, and respond to unwanted Internet access to DOT headquarters networks; (2) sensitive information on DOT headquarters networks is protected with access authentication and secure transmission; and (3) network performance is properly monitored.