It has been brought to our attention that someone is sending fake emails form "bungie.com" (we're actually Bungie.net and we never email you about your account details or security.) and we have to assume the sender of the mails, often with a zip file attachment, is up to no good. Simply delete and ignore them and never, ever open a file from a sender you don't know or trust.
The content of the email may look like this:
Dear user frankie,
It has come to our attention that your Bungie User Profile ( x ) records are out of date. For further details see the attached document.
Thank you for using Bungie!
The Bungie Support Team
Again, these mails are not from us, they're from some jackass. Ignore them.