Abstract: First data indicative of a first plurality of transactions by a user may be processed to generate first behavioral information describing the user. The first behavioral information may be displayed by an interactive user interface. A user input made in response to the first behavioral information may be received and analyzed to generate user preference information indicating a relationship between the first user input and the first behavioral information. Second data indicative of a second plurality of transactions by the user may be received and processed with the user preference information to generate second behavioral information describing the user. The second behavioral information may be displayed by the interactive user interface differently from the first behavioral information by the interactive user interface as a result of the processing of the second data and the user preference information together.

Abstract: A multi-function transaction card may determine whether to submit a first payment as a passive payment device or to receive a second payment from another transaction card. The multi-function transaction card may have a length and a width that are in accordance with a standard for transaction cards. The multi-function transaction card may selectively perform a payment transaction based on determining whether to submit the first payment or to receive the second payment. The payment transaction may be performed by providing first card data to a transaction terminal for processing when the multi-function transaction card is to submit the first payment. The payment transaction may be performed by receiving second card data from the other transaction card, and processing the second card data via online data authentication, or via offline data authentication, when the multi-function transaction card is to receive the second payment.

Abstract: Various embodiments are generally directed to techniques communicate in a cellular communication frequency range, detect a resonant signal in response to the communication in the cellular communication frequency range for cellular communication, the resonant signal to indicate presence of a contactless card. Embodiments also include enabling a near-field communication device to send a communication to the contactless card based on the detection of the resonant signal, the near-field communication device to communicate with the contactless card in a near-field communication frequency range.