The present invention wired Internet, e-banking transactions during relates to a method for preventing denial of financial transactions in fact the parties, wired / in the wireless network parameters bidirectional communication is financial traders using wireless internet or telephony through mobile in the terminal and financial institutions non-face-to-face way of electronic banking methods are conducted at the terminal, pronounce that the financial institution terminal sends the pronunciation request signal containing information about the word or phrase to financial traders are pronounced as a financial trader terminal requesting step; Wherein said speech sending financial trader terminal receives the voice pronunciation financial traders are in accordance with the pronunciation request signal sent to the financial institution terminal; Voice file storing step in which said financial institution terminal stored in a DB of the voice transmitted from the financial trader terminal; will further contain a.
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