Does OnlineÜberweisen get access to my account data?

As a so-called payment initiation service, online transfers access your bank account automatically and in real time in order to place a transfer. You authorize the online transfer through your login details, which are used once to establish secure communication to your bank account. After that, the login data is not stored and is not visible to third parties at any time. The technical communication with your bank is secured with an encryption corresponding to the bank standard.