Confirmation number
A confirmation number ( BEN ) is a receipt for a transaction number (TAN).
As a participant in electronic banking , you receive a list of transaction numbers . A TAN must be entered for every booking process - the transaction . It is more or less a signature and expires after a single use.
Some banks add a confirmation number (BEN) to each TAN. The bank computer sends this with the confirmation of the order signed by the customer with a TAN.
If the comparison with the BEN shown on the TAN list turns out to be negative, the communication with the bank computer was simulated by fraudsters (e.g. using a Trojan ). The alarmed customer can now immediately block his access or contact his bank to take countermeasures.
literature
- ↑ FAQ on the ITAN / BEN procedure at Dresdner Bank ( Memento from September 27, 2007 in the Internet Archive )