Patent ID: 11936684
Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method, comprising:
receiving, by a user device, a first message comprising first access device identification data associated with a first access device, the first access device identification data comprising a first public key;
receiving, by the user device, a second message comprising at least second access device identification data corresponding to a second access device and a digital signature;
performing a validation process for the second message using the digital signature and a second public key;
when the second message is invalid and the second public key is the first public key associated with the first access device:
identifying that the second access device identification data differs from the first access device identification data; and
presenting, by the user device, the second access device identification data indicating a difference between the second access device identification data and the first access device identification data; and

when the second message is valid and the second public key differs from the first public key:
terminating processing of the second access device based at least in part on determining that a confirmation indicating an intent to interact with the second access device has not been received.