The Bank Identification Number (BIN) makes up the first six digits of a credit card number. The BIN identifies the bank that issued the card. This filter screens every credit card number for BINs on PayPal’s high-risk list.
The specified action is taken whenever a BIN matches one on the list.
To learn more about PayPal's Risk List, click here.
Certain BINs might be associated with a greater degree of fraud because the issuer uses less stringent authentication policies when issuing cards. In other cases, because some issuers have a large number of cards in circulation, the cards are more likely to fall into the hands of fraudsters.