US Patent 11783335 Transaction confirmation and authentication based on device sensor data

A device may receive transaction data indicating that a transaction occurred. The transaction may be between a first user of a first device and a second user of a second device. The device may receive, from the first device, first sensor data indicating a first location recorded by a first sensor of the first device at a first point in time associated with the transaction; and receive, from the second device, second sensor data indicating a second location recorded by a second sensor of the second device at a second point in time associated with the transaction. Based on the transaction data, the first sensor data, and/or the second sensor data, the device may determine whether the transaction occurred and perform an action based on the determination of whether the transaction occurred.