Patent ID: 7227950

Claim:
A method of assessing a financial fraud risk within a distributed client/server system, said method comprising: receiving first and second financial transactions from transactional information sources at a central computer system; generating first features for said first financial transaction at said central computer system, said first features including probability information; generating second features for said second financial transaction at said central computer system, said second features including probability information; determining feature changes between said first features and said second features at said central computer system; encrypting said feature changes at said central computer system; transmitting said encrypted feature changes from said central computer system to a client computer system; receiving a local, current financial transaction at a client computer system; encrypting said current transaction at said client computer system; generating local features from said encrypted current transaction at said client computer system, said local features including probability information; comparing said local features to said received feature changes at said client computer system; and scoring the result of said comparing to produce a fraud risk value associated with said local, current financial transaction, whereby the risk associated with said current financial transaction is assessed in a distributed manner.