The popular payment app Tikkie offers the possibility to transfer money to other Tikkie users based on their 06 number. This made it possible to trace the IBAN numbers of many unsuspecting Tikkie users, with the risk of identity fraud and phishing. This is shown by research by RTL Nieuws. ABN Amro confirms the vulnerability and has temporarily taken the new function, Tikkie Pay, offline. “Thank you for your attention,” said the spokesman.