| 摘要 |
An embodiment of the present invention provides a facility for securing the use of a distinguished operation, such as a computer system administration operation, to authorized users. The facility first displays an ornamental image to a user. The displayed ornamental image contains a visual key feature that the facility uses to discern the authority of the user to perform the distinguished operation. The facility then determines whether the user has selected the key feature within the ornamental image. The facility invokes the distinguished operation only in response to a determination that the user has selected the key feature. In this way, only authorized users informed to select the key feature may invoke the distinguished operation.
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