Various embodiments are generally directed to continuous authentication of a user to a digital service based on activity of a contactless card positioned proximate to a computing device on which the digital service operates. For example, a series of periodic status messages may be provided between a client device and the contactless card to verify whether the contactless card remains active, wherein authorization to access the digital service continues while the contactless card is active, and terminates when the contactless card is inactive.

The present application provides a method for implementing a middleware based on EMV, a terminal device, and a computer-readable storage medium. The method includes: establishing a middleware based on EMV L2, wherein the middleware provides a first interface for an upper-layer application of the terminal device to call; after the middleware receives a calling request for the first interface sent by the upper-layer application according to detected information of a IC card, calling an interface of an Entry library according to the calling request to obtain a return result of the Entry library, wherein the return result of the Entry library comprises an application identifier of the IC card; and determining an EMV L2 library matching the IC card based on the application identifier, and calling an interface of the EMV L2 library matching the IC card, to complete a contactless process with the IC card.

Systems and methods allow for the integrated circuit cards (ICCs) to removably couple to each other and transmit information to an access device as a single device. One among the two or more ICCs coupled together may read data from the remaining ICCs and provide the data to an access device via contactless communication. The ICC may include a substrate; an integrated circuit embedded in the substrate; input ports exposed on a first surface of the substrate, and output ports exposed on a second surface of the substrate. The input ports and the output ports are electrically coupled to the integrated circuit. The output ports are configured to be removably coupled to the input ports of a second ICC.

Methods and systems are provided for verifying the possession of a card, such as a credit card or a debit card, by a card user. Possession of the card can be verified, for example, when a purchase transaction, such as a telephone purchase transaction or an online purchase transaction, is attempted with the card and the purchase transaction is denied due to suspected account take over. Possession of the card can be verified by detecting the present of the card with a mobile device of the user, such as a smart phone. For example, possession of the card can be verified by near field communication (NFC) between the card and the mobile device, wherein the communication is sufficient to adequately determine the presence of the card.

A batteryless payment device is disclosed. According to certain embodiments, the batteryless payment device may include a first communication system and a second communication system, the second communication system being a near-field-communication (NFC) system. The batteryless payment device may also include a power receiver coupled to the first communication system and configured to wirelessly receive power from an external device for powering the first communication system. The batteryless payment device may further include a controller configured to: when the first communication system is powered, establish, via the first communication system, a first wireless connection with a user device; receive, through the first wireless communication, a token from the user device; establish, via the second communication system, a second wireless connection with a payment terminal; and transmit, through the second wireless connection, the token to the payment terminal.

Systems and methods for secure and efficient bill capture, analysis, and execution are provided. A method may include capturing, via a camera embedded in a smart card, an image of a bill. The bill may include a plurality of text fields. The method may include processing the text fields via a microprocessor embedded in the smart card. The method may include determining, based at least in part on the processing of the text fields, a balance amount and a payment recipient associated with the bill. The method may also include executing a payment for the balance amount from an account associated with a user of the smart card to an account associated with the payment recipient. The executing may be performed via a wireless communication element embedded in the smart card which may be configured to provide wireless communication between the smart card and a payment gateway.

Aspects of the disclosure relate to a smart contactless card to detect real-time suspicious card readers or other fraudulent devices. Prior to a transaction, the smart contactless card detects suspicious card readers or fraudulent devices. An alert may be generated upon detection of any suspicious or fraudulent card reader. In some arrangements, the smart contactless card may utilize machine learning models or machine learning capabilities to detect suspicious card readers. The smart contactless card may pair with other smart contactless cards to detect and alert users to suspicious card readers or other fraudulent devices. The paired smart contactless cards may share information regarding suspicious card readers or fraudulent devices over a semi-autonomous data-sharing network. A vulnerability score may be generated and used to determine if a card reader or other payment device is suspicious.

A bridge service is provided to support multi-user simulated contactless cards that in response to receiving a request to provision a secure element with payment card profile information of a user, provisions a token representing the payment card profile, converts the token representing the payment card profile into a format for the payment application; and provides the payment card profile to the payment application, the payment card profile comprising a single use key. The bridge service enables simulated contactless cards to store payment card information for a user on volatile memory instead of the persistent, secure element memory.

A multi-function transaction card may include a card body having dimensions that are in accordance with a standard for transaction cards, an output device on the card body, and a secure element within the card body. The multi-function transaction card may pair, via a wireless connection, the multi-function transaction card with a terminal. The multi-function transaction card may receive, from the terminal, information associated with a transaction. The multi-function transaction card may generate, based on the information associated with the transaction, and using a cryptographic key, an authorization request cryptogram (ARQC), wherein the cryptographic key is stored in the secure element. The multi-function transaction card may generate, based on the ARQC, a machine-readable code. The multi-function transaction card may display, using the output device, the machine-readable code.

A method, apparatus, and system of activating and using a contactless card are disclosed. A method includes receiving a transaction card application for a contactless transaction card from an applicant; issuing a contactless transaction card based on the transaction card application, wherein the contactless transaction card comprises a uniform resource locator (URL) embedded thereon; and activating the contactless transaction card in response to receiving information from a contactless communication between the contactless transaction card and a customer device, wherein the contactless communication causes access to a web site associated with the URL.