I was surprised to find such nice tips to secure your wifi on cnn ibn’s website.
Even if you can’t follow all the tips there. Just changing the default router user name and password and password protecting your wifi will help you a lot.
I know keeping it open helps other users, but its not worth the trouble it will get you into.
Password protecting your wifi network is easy do a Google search and you will get the details.
To change router settings just go to 192.168.1.1 in your browser and that should bring up the router settings. From there you can easily change the default password and also put a password on your wifi.
Once you log in with a password to the wifi access point the password in remembered and you don’t need to type it again. So implementing this is easy to use to.