We are having issues with our "New People" (Subscribers) being added into CIO with no email address but with a customer ID. There are no names attached to these new false contacts either. I assumed that maybe it was a issues with our subscriber landing page but that hasn't fixed the issues.
There are roughly 10 false contacts being added to one legitimate contact. Would love help in problem solving this as its creating a huge subscribed/People list but most are false.