主权项 |
1. A method of verifying user accounts, the method being performed by a computing device and comprising:
storing, in a memory resource accessible by the computing device, a plurality of user accounts; receiving, at the computing device, a request for an on-demand service from a service application operating on a user device associated with a first user account of the plurality of user accounts; and determining that the first user account is associated with a potentially fraudulent user; and in response to determining that the first user account is associated with a potentially fraudulent user, causing the service application to display a prompt instructing a user operating the user device to scan or capture an image of a payment card using a camera of the user device. |