Quote:A number of iPhone owners complain of what appears to be a major security problem encountered when trying to change the billing info or the iTunes credit card data.
 
According to posts on reddit (1 and 2), account information belonging to someone else shows up in others’ Apple IDs, along with full name, billing address, and the last 4 digits of credit cards.
While full credit card data is not exposed, the personal information is, and users who came across this bug claim Apple is already aware of the problem.
“Spent about 40 minutes on the phone with Apple. They are aware of my issue,” reddit user createdbyeric explains. “They are taking the issue very serious. I was transferred an senior manager who quickly acknowledged how big of an issue this was and he will be escalating both our cases to higher ups.”