Researchers said they shared details of the problem with Apple and Visa, claiming both companies acknowledged the seriousness of the vulnerability but have not come to an agreement on who should implement a fix.
“Our discussions with Apple and Visa revealed that when two industry parties each have partial blame, neither are willing to accept responsibility and implement a fix, leaving users vulnerable indefinitely.”
The weakness does not affect other combinations, such as Mastercard in iPhones or Visa on Samsung Pay.