Abstract: A method including receiving a first application user credential associated with a user profile; comparing, for a first match, the first application user credential with a stored second application user credential, wherein the stored second application user credential is associated with a user identity; and responsive to finding a first match, verifying the user identity by performing the following: communicating with a card using near field communication; receiving a public key of a key pair of the card and cardholder identification information of an account holder of the card; instructing the card to generate a digital signature; receiving the digital signature from the card; verifying the digital signature using the public key; and comparing, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information.

Abstract: A method including receiving a first application user credential associated with a user profile; comparing, for a first match, the first application user credential with a stored second application user credential, wherein the stored second application user credential is associated with a user identity; and responsive to finding a first match, verifying the user identity by performing the following: communicating with a card using near field communication; receiving a public key of a key pair of the card and cardholder identification information of an account holder of the card; instructing the card to generate a digital signature; receiving the digital signature from the card; verifying the digital signature using the public key; and comparing, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information.

Abstract: Various embodiments are generally directed to authenticating a user for non-payment purposes utilizing a payment protocol, a computer device and a contactless card. The payment protocol may be consistent with an EMV standard. An application may determine that authorization or verification of a user may be required to access non-payment features of another application associated with the user and the computer device. The application may then receive and/or facilitate transmission of encrypted data from a communications interface of a contactless card associated with an account and utilizing either an offline or online technique to do so. The offline or online technique may involve one or more operations that can verify the identity of the user and/or otherwise authorize the user to have access to various aspects of the other application.

Abstract: Various embodiments are generally directed to authenticating a user for non-payment purposes utilizing a payment protocol, a computer device and a contactless card. The payment protocol may be consistent with an EMV standard. An application may determine that authorization or verification of a user may be required to access non-payment features of another application associated with the user and the computer device. The application may then receive and/or facilitate transmission of encrypted data from a communications interface of a contactless card associated with an account and utilizing either an offline or online technique to do so. The offline or online technique may involve one or more operations that can verify the identity of the user and/or otherwise authorize the user to have access to various aspects of the other application.

Abstract: A method including receiving a first application user credential associated with a user profile; comparing, for a first match, the first application user credential with a stored second application user credential, wherein the stored second application user credential is associated with a user identity; and responsive to finding a first match, verifying the user identity by performing the following: communicating with a card using near field communication; receiving a public key of a key pair of the card and cardholder identification information of an account holder of the card; instructing the card to generate a digital signature; receiving the digital signature from the card; verifying the digital signature using the public key; and comparing, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information.

Abstract: A method including receiving a first application user credential associated with a user profile; comparing, for a first match, the first application user credential with a stored second application user credential, wherein the stored second application user credential is associated with a user identity; and responsive to finding a first match, verifying the user identity by performing the following: communicating with a card using near field communication; receiving a public key of a key pair of the card and cardholder identification information of an account holder of the card; instructing the card to generate a digital signature; receiving the digital signature from the card; verifying the digital signature using the public key; and comparing, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information.

Abstract: Embodiments of systems and methods for data access control and account management are described. In an embodiment, a server can apply flags to user accounts identified as requiring the user to perform an action or, in the case of potentially compromised access credentials, to offer the user the opportunity to authenticate and create new credentials. A user account database and an access report database can store access credentials, flags, and other relevant information for use by the server to perform various administrative, authentication, and protective actions on user accounts.

Abstract: Various embodiments are generally directed to authenticating a user for non-payment purposes utilizing a payment protocol, a computer device and a contactless card. The payment protocol may be consistent with an EMV standard. An application may determine that authorization or verification of a user may be required to access non-payment features of another application associated with the user and the computer device. The application may then receive and/or facilitate transmission of encrypted data from a communications interface of a contactless card associated with an account and utilizing either an offline or online technique to do so. The offline or online technique may involve one or more operations that can verify the identity of the user and/or otherwise authorize the user to have access to various aspects of the other application.

Abstract: Embodiments of systems and methods for data access control and account management are described. In an embodiment, a server can apply flags to user accounts identified as requiring the user to perform an action or, in the case of potentially compromised access credentials, to offer the user the opportunity to authenticate and create new credentials. A user account database and an access report database can store access credentials, flags, and other relevant information for use by the server to perform various administrative, authentication, and protective actions on user accounts.

Abstract: A method including receiving a first application user credential associated with a user profile; comparing, for a first match, the first application user credential with a stored second application user credential, wherein the stored second application user credential is associated with a user identity; and responsive to finding a first match, verifying the user identity by performing the following: communicating with a card using near field communication; receiving a public key of a key pair of the card and cardholder identification information of an account holder of the card; instructing the card to generate a digital signature; receiving the digital signature from the card; verifying the digital signature using the public key; and comparing, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information.

Abstract: Embodiments of systems and methods for data access control and account management are described. In an embodiment, a server can apply flags to user accounts identified as requiring the user to perform an action or, in the case of potentially compromised access credentials, to offer the user the opportunity to authenticate and create new credentials. A user account database and an access report database can store access credentials, flags, and other relevant information for use by the server to perform various administrative, authentication, and protective actions on user accounts.

Abstract: A method including receiving a first application user credential associated with a user profile; comparing, for a first match, the first application user credential with a stored second application user credential, wherein the stored second application user credential is associated with a user identity; and responsive to finding a first match, verifying the user identity by performing the following: communicating with a card using near field communication; receiving a public key of a key pair of the card and cardholder identification information of an account holder of the card; instructing the card to generate a digital signature; receiving the digital signature from the card; verifying the digital signature using the public key; and comparing, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information.