I wonder if it is why I am experiencing the following. I can only log into my Marriott account if I get a six digit code. The code has to be sent to me by email; it won't work as text. I can have accessed my Marriott account in the past five minutes and still need to get a new code. It's time consuming and annoying. By contrast, my husband can access his account with no additional code required.

It's very annoying and I am glad the OP brought it up.