US Patent 11580517 Mobile device-based dual custody verification using micro-location

A method is provided. The method includes receiving a request to conduct a transaction with a merchant, requesting approval of the request, receiving approval of the request, verifying the transaction, receiving a first data, receiving a second data, determining a first distance between the first computing device and the second computing device based on the first and second data, determining that the first distance between the first computing device and second computing device satisfies a first predetermined distance threshold, receiving a third data, the third computing device being associated with the second user, determining a second distance between the third computing device and the second computing device based on the third and second data, determining that the second distance between the third computing device and the second computing device satisfies a second predetermined distance threshold, and approving the transaction.