IOS9 the iphone lock-screen password is more secure after this setting

1, enter "set-touch ID and password", find "Change Password". After you enter the old password, we will see an interface for entering the new password.

2, in this interface, we do not hurry to enter the number, but click on the middle of the "password option." This is where we can see more options, and we're going to choose the most complex "custom alphanumeric password".

3, when the input bar becomes a strip, we can enter the more complex password we want. Now look at our lock screen interface, the password has become this.

Such a password is indeed more secure than a pure digital password, of course, if you are not too troublesome. Well, hopefully our tutorials will help you make your phone more secure, at least psychologically.