Help|Email Verification

What's Email verification is making ?
And is it possible to cancel it after you make it ?

I want to do it because I got a character that someone know his secret answer ,and I gave the player to someone(not the same person) ,and I afraid that the person who know the answer will give it to the other one and he will be able to change my password and details ...

Email Verification means any attempt to edit your account information (Password) will need an authorization code, that will be sent to the email you activated it with. If the person has access to the email, and the secret answer, they can change password.
Email Verification can't be reversed, email can't be changed.

it is convenient in some cases... but if u dont share with no one.. its best u leave it alone.. but obviously u do.. so yea u should do it.. but dont put ur current email.. bcus then u might want to sell it... and u will probly lose ur email.. so its better to create a new mail... suggestions? hotmail, gmail.. yahoo sucks