How do I lock my wifi on iphone?

[welzmo]

Have an iMac and a Belkin router. Finally figured out how to connect wifi on my iPhone but it's not locked. How do I lock it?

 

[hang-the-9]

What do you mean it's not locked? The WiFi on the router is not secure? Go into the router config page and set it up. WPA2-PSK is a pretty secure standard, I use that on my router.