Reporting by the Issuer
MasterCard issuers must submit all fraudulent transactions on its MasterCard accounts to SAFE on a monthly basis. For the benefit of all members, MasterCard analyzes the data and produces statistics relating to the fraudulent use of MasterCard accounts and all chargebacks that originate from transactions using accounts with a fraud status.
An issuer must report fraudulent transactions even if it recovered losses through chargebacks, compliance cases, restitution, insurance, or any other means.
Reporting by the Acquirer
An acquirer receiving a transaction that cannot be identified by a MasterCard BIN or member ID is liable for that transaction. If it is determined that the transaction is a fraudulent or counterfeit MasterCard transaction, the acquirer must notify, in writing, the Security and Risk Management Department of such an occurrence. This notification must include all mandatory information as described in the Security Systems Specifications manual.
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