how to increase facebook security

bissmillah..
reff:www.binushacker.net
oke just follow the following steps:
login with your facebook account, and then selected on account setting, then would be seen like the following picture:
and then click 'change' would be seen like the following picture:
checked all The option and then click the save button.

and then logout from your facebook account and login again, and then you will be requestd to fill the name of your computer you used to loginand click the continue button. that will be sent on your email.
NB; i'm still learn english language. please corrected..