TAN Optimus comfort uses optical sensors to transmit transaction-related data from monitors to offline-devices. End-users read the transaction-related data from their offline-device’s display and sign them by pressing the “accept” button. Even if the respective PC is subject to attacks, offline device TAN Optimus comfort cannot be manipulated.
Reading off barcodes, checking and verifying transaction-related details, entering TANs in order to release transactions.
End-users complete an online form and send it to the application server. In order to approve the data, the server causes a barcode to be displayed. Once the end-user has inserted their banking card (Smart Card) into TAN Optimus and held the reader in front of the monitor, the details will be displayed. The user approves the transaction-related data (on the offline device’s display) and accepts the generation of a one-time code.
TAN Optimus Comfort allows for reading transaction-related data from PCs, tablets or Smartphones and thus prevents man-in-the-middle or man-in-the-machine attacks. The transaction-related TANs ensure the scanned barcode to be generated by the right server and to be valid for this specific transaction only.