When a mobile device is set to use WiFi, it will recognize any WiFi network in its range but may not be able to join the network because of the security settings on the WiFi access point-the mobile device will see it and note that it exists. When that happens, the device takes note of the network and logs it.

Question

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Mobile devices can detect and list all WiFi networks in range, but joining a network may require authentication if the network is secured with a password or other security measures. The device will recognize and list the network but won't be able to connect without the necessary credentials.

When a Mobile Device Is Set to Use WiFi, It