4、definedas: inmodernsociety, technology, economyishighlydeveloped, informationtechnologyandbusiness rules, systematic useof Intranet, extranet andInternet andothermodern system of highefficiencyandlowcost ofbusinessactivity. Withthedevelopmentoftechnology ofonlinetransactions, becomethecoreandkey p
5、roblemsin thedevelopmentofonlinetrading thesecurityofonlinetransactions, the onlineprivacy data (privacyonline) theeffectiveprotectionof security, hasbecomeanimportant marketconditionsof thesmoothdevelopmentof online transactions. TherapiddevelopmentoftheInternet hasbroughtunprecedentedconvenience
6、 tosociallife, whichwasmainlydueto theInternet'sopennessand anonymity feature. However, itisthese characteristicsalsodeterminethe Internet meanstheexistenceof information securityrisks. Introduction theInternet securityproblems andits28solution method, namelytheonline communication datasecurity te