Abstract: A computer implemented method and system for determining a fraudulent payment transaction in a collaborative environment is provided. A collaborative database, accessible by multiple reviewing entities via a network, receives and stores transaction history data of payment transactions from the reviewing entities. A collaborative fraud prevention platform (CFPP) receives a fraud determination query associated with a transaction request associated with a consumer account. The CFPP performs a search in the collaborative database based on the fraud determination query by comparing current transaction data from the transaction request with the stored transaction history data, performs an analysis of characteristics of the consumer account, and generates a fraud determination report based on the comparison and analysis.