Attack detection method and system for floating token interaction, terminal and storage medium

The invention provides a floating token interaction attack detection method and system, a terminal and a storage medium, and the method comprises the steps: searching a to-be-detected current block for a first risk interaction event and a second risk interaction event, the first risk interaction event is that the value of the floating token of the first user after interaction is higher than the value of the corresponding standard token before interaction, and the value of the floating token of the second user after interaction in the second risk interaction event is lower than the value of the corresponding standard token before interaction; according to the first risk interaction event, the second risk interaction event and block data, whether the non-centralized interaction network system is subjected to sandwich attacks or not is determined, and the block data comprises current block data and historical block data. The first risk interaction event and the second risk interaction event of the current block