That bold text on the data hub is the device nickname you(or an account owner/manager) assigned to your device.  On mine I set the device nicknames to the names of the individuals using those phones, and those names appear exactly where you see UNSUPPORTED PRIV for each line in the my Verizon data hub on my phones.

The device nickname can be set to almost anything.  Go to the device tab, select your device, and then scroll down to Edit device nickname to change it.