10/21/2015
I signed out of my account on Bungie.net to sign into a different account, but it automatically logs me in to the previous account.
This issue occurs if you're still signed in to a PlayStation Network or Microsoft Account that are linked to your Bungie.net account. To completely sign out clear your internet cache and cookies, or sign out manually from the site that is linked to your Bungie.net account. After you have completed these steps you can sign into a different account.