fraud detection services in the field of credit cards for on-line purchasing; providing fraud detection services for electronic funds transfer, credit and debit card and/or electronic check transactions via a global computer network; identifying potential high risk and/or fraudulent purchasers and consumers; preventing fraudulent purchases over the Internet

'and/or':27,40 'card':9,26 'check':29 'comput':34 'consum':44 'credit':8,23 'debit':25 'detect':2,17 'electron':20,28 'field':6 'fraud':1,16 'fraudul':41,46 'fund':21 'global':33 'high':38 'identifi':36 'internet':50 'line':13 'network':35 'on-lin':11 'potenti':37 'prevent':45 'provid':15 'purchas':14,42,47 'risk':39 'servic':3,18 'transact':30 'transfer':22 'via':31

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