Mae i a keen system administration; she constantly monitors the mailing list for best practices that are being used out in the field.On the servers that she maintains, Mae has renamed the…

Mae i a keen system administration; she constantly monitors the mailing list for best practices that are being used out in the field.On the servers that she maintains, Mae has renamed the administrator account to another name to avoid abuse from crackers. However, she found out that it was possible using the sid2user tool to find the new name she used for the administrator account.Mae does not understand; she has NOT shared this name with anyone. How can this be? What is the most likely reason?