BINs are used to prevent fraudulent activities in several ways:
- Identification of the Issuer: BINs help to identify the financial institution that issued the card. This information is necessary to route the transaction to the correct issuer for authorization and settlement. If a transaction is made using a BIN that is not associated with a valid financial institution, the transaction may be declined.
- Validation of Card Information: BINs can be used to validate the card information provided by the customer. This helps to prevent errors in processing and ensures that the transaction is authorized by the correct issuer. If the BIN does not match the issuer of the card, the transaction may be flagged for further review.
- Fraud Detection: BINs are used by fraud detection systems to identify suspicious or fraudulent transactions. If a transaction is made using a BIN that is associated with high levels of fraud, the transaction may be flagged for further review or declined. BINs can also be used to identify patterns of fraudulent activity across multiple transactions.
- Geolocation: BINs can provide information about the geographic location of the cardholder. This information can be used to identify transactions that are outside of the cardholder’s normal spending patterns, which may indicate fraudulent activity.
Overall, BINs play an important role in preventing fraudulent activities by ensuring that transactions are authorized by the correct issuer and by identifying suspicious or fraudulent transactions.