Re:EU Abolishes Tan Lists and Banking Apps on Rooted Phones ...
by timakro on Tuesday March 26, 2019 @02:19AM
(#19489643)
It stands for "Transaction authentication number", in Germany this term is widely used, not sure about other European countries.
And yes you are correct, this is a one-time password you enter to authenticate a bank transaction.
Perhaps one of our readers from Germany can help us clarify?