I don't trust the people around me, so I secure my wi-fi like this.
1. Change the login name and password on the router. <---You would be surprised how many people forget to to do that.
2. Turn off SSID broadcasting.
3. Turn off DHCP and change the IP range from the factory default.
4. Enable WPA. If you don't have WPA turn on WEP, even though WEP can be pretty easily cracked, it is better than nothing.
5. Set MAC address filtering.
1. Change the login name and password on the router. <---You would be surprised how many people forget to to do that.
2. Turn off SSID broadcasting.
3. Turn off DHCP and change the IP range from the factory default.
4. Enable WPA. If you don't have WPA turn on WEP, even though WEP can be pretty easily cracked, it is better than nothing.
5. Set MAC address filtering.