Wireless access is enabled (and not required)? Wireless access is configured with open access? SSID suppressed/not broadcast? not ideal, will confuse users, hackers can find it.
MAC address filtering? not ideal, can be spoofed
Wireless access point uses WEP? Wireless passphrase is easily-guessable?
Bluetooth access is enabled (and not required)? Bluetooth pairing is not configured with authentication?