This is a very quick How-To on disabling the RealID function in game.
If you are not aware, if you have RealID enabled, an addon or scripts can grab your RealID info. Disabling RealID stops this from happening.
1. Go to
https://us.battle.net/login/login.xml and log in.
2 . Under Manage My Games, click on the Parental Controls link.
If you HAVE Parental Controls already enabled, skip down to #9, otherwise:
3. Click the "No - Set up Parental Controls Now" button.
4. Enter your Battle.Net login under "Child's Battle.net Account Name"
5. Enter your Battle.Net password under "Child's Battle.net Account Password"
6. Enter your Battle.Net email under "Parent's Email Address" and "Confirm Parent's Email Address".
7. Click on "Set Up Parental Controls"
8. You will get an email verification with a link in it to complete the setup. Click the link.
9. Go to the link that was provided in your Parental Controls email.
10. Make sure the "Enabled RealID" checkbox is NOT checked.
11. Click "Save Settings"
Congratulations, RealID is now disabled for your Battle.Net account for in-game access.