| 摘要 |
A device stores multiple identifiers meant for specific uses. For example, multiple transaction tokens can reside on different parts of a user device. Each transaction token can be compatible for use with a transaction channel (e.g., contact, contactless, and card-not-present, telephone-order, mail-order, in-app, etc.). A transaction can be terminated based on a transaction token being utilized in an inappropriate transaction channel, which limits the chances that a compromised transaction token can be successfully utilized for fraud. In some cases, the user device may be a transaction card or a mobile phone. |
