Network hijacking prevention method based on gateway strategy

The invention discloses a network hijacking prevention method based on a gateway strategy, which solves the defects in the prior art and comprises the following steps of: 1, receiving request information, extracting unique characteristics of the request information, checking the unique characteristics, judging whether the request information is replayed or not, if the request information is replayed, skipping to a step 5, and if the request information is not replayed, skipping to a step 2; 2, judging whether the request information carries token information or not, if yes, verifying the token information, if verification succeeds, skipping to a step 3, and if verification fails, skipping to a step 5; if the token information does not exist, skipping to the step 3; step 3, recording a log by the unique feature, matching the log with a historical log, judging whether the unique feature is abnormal or not, if not, skipping to step 4, and if yes, skipping to step 5; 4, the request information is confirmed to be