Wireless networking is inherently more vulnerable to security problems because radio signals are broadcast over a building for anyone to capture.
eduroam is the fastest WiFi on campus and provides per user encryption, which is very secure.
uofrPSK uses the WPA2 to encrypt traffic from your device to the wireless access point, but all campus users have access to the encryption key, which can allow technical savvy users to decrypt all wireless traffic, so it's not as secure as eduroam.
If you are using uofrPSK or uofrGuest it is recommended that you switch to eduroam.
Where your device doesn't support the required protocols we recommend you take the following precautions:
Do not enter sensitive information on web pages, unless there is a padlock symbol shown (with the padlock locked).