Are you using a third-party program from the Ports Collection
My wpa is pretty minimal:A wifi access point can be configured to be "open", and not require a password to connect to it. Your wpa_supplicant.conf file probably has something in it that allows connecting to such a network automatically (no matter what the ssid is) if it can't connect to any other network.
ctrl_interface=/var/run/wpa_supplicant
eapol_version=2
ap_scan=1
fast_reauth=1
network={
ssid="my_ssid"
scan_ssid=0
psk="my_ssid_password"
priority=5
}
network={
priority=0
key_mgmt=NONE
}