Input needed on securing account

[DJ2Ball]

Will this work?

I have an account that I’ve gained access to, here is the info I have:

Username, password, secret question and answer, address, postcode, first name, surname, WOW cdkey and BC cd key. Im working on the date of birth. I also have access to this persons email account so can intercept and delete emails from blizzard.

Is this enough to secure the account? I’m thinking I call blizzard uk, tell them I want to change email address, setup a new one in the guys name, give blizzard all the info, move the account to the new email address, intercept and delete the emails to his email before he sees them.

Then, change the password and lock him out of his own email to hamper the speed he can recover. Do a transfer to a new wow account I setup in his name, then go and ban his old account (its already on final warning J )

Anyone see this not working, suggest anything else I should be doing? Is there a best time to do this for example?