Hi Experts
We use standard SAP transaction to generate vendor payment/ Payroll files for BACS payment process. The files are generated and stored in a folder on the OS level directory (UNIX/Windows etc) from where it is FTP'ed or SFTP'ed to the payment gateway server which in turn upload the files to BANKS.
From security point of view, the data is fully secured from the moment the file is picked up from OS directory and transferred to Payment Gateway Server. However, the file is vulnerable to security risks/threats