Patent attributes
A dynamic transaction card comprising an outer surface, a sensor, and a display disposed on the outer surface is disclosed. The dynamic transaction card can include an antenna and a microcontroller controlling a dynamic transaction card application. The dynamic transaction card can also include a secure payment chip having a plurality of contact points and storing a passive tag associated with a user. The passive tag can include a unique identifier and one or more log-in credentials for the user. When making a purchase, the user can be authenticated via a connection between the dynamic transaction card and a user device. The unique identifier can be used as an authentication token and the one or more log-in credentials can be verified against log-in credentials associated with the user.