| 摘要 |
A system and method for permitting entry into a defined operational mode of a software application on a selective basis. To enter the limited-access mode, action must be taken at both a server and a client device. The client device stores a software application that is configured with inactive functionality for entering the predefined mode in response to user input. The server is operable to provide very limited distribution of configuration settings data to activate the functionality for recognizing predefined user input and responsively entering the predefined mode. The required predefined user input is a widely-kept secret to which access is extremely limited, and is identified to users only an as-needed basis. Accordingly, access to the defined mode is limited to users (i) having a computing device that has received the configuration settings data enabling recognition of the predefined user input, and (ii) knowing and providing the predefined user input. |
