During transactions, merchants send details like device name and IP address to the issuing banks for verification. Through 3D Secure, the issuing bank compares the details with what they have on file in real-time. Based on the verification results, the transaction is labeled low-risk, and the merchant can proceed or high-risk, which requires extra verification steps like providing the one-time password.
A blacklist is a database of past shoppers who’ve filed a dispute or charged back. The database is created post-transaction but ensures the shopper causes trouble only once.
You can integrate the blacklist with your CRM to flag orders by shoppers on the list and either cancel the order automatically or manually review it.