Originally Posted by
hhoope01
Marriott will let you put a passcode on any changes. A Marriott CSA will need you to provide that code before they can order awards or make other changes.
This. I set this up several years ago, but that only applies to phone stuff I think.
I don't think the OP needs to get a new acct number but do think s/he should change password in addition to passcode
Cheers