The invention discloses a
system and method for ensuring security of an
electronic transaction platform, and relates to the technical field of
financial security, and the method comprises the steps: capturing the dynamic change information of an
optical flow field in a current transaction terminal environment in real time, and generating
optical flow field gradient data through the frame-by-frame analysis of the gradient change of illumination intensity in space and time; when the
electronic transaction risk probability value exceeds a preset probability threshold value, continuously observing the
time sequence fluctuation of the gradient data of the
optical flow field at a dynamic frequency, performing high-frequency measurement on a forced
attack transaction process to enter a
quantum sesame effect freezing state, and outputting a freezing
signal; triggering a transaction freezing instruction with a time lock based on the freezing
signal, and generating a transaction freezing event; and the transaction freezing event is encrypted and written into a distributed account book to generate a judicial audit evidence chain, and the security disposal of the
electronic transaction is completed. According to the invention, through a dynamic frequency
quantum observation mechanism, when the
risk probability exceeds the threshold value, the gradient
time sequence fluctuation of the optical flow field is measured at
high frequency, so that the
attack process enters a
quantum sesame frozen state.