1. A device for communication, comprising: an optical sensor to capture an image, the image comprising a class of data embedded in the image, the class of data having an associated predetermined function and comprising at least one of characters and numbers; a processor configured to: identify the class of data in the image from a plurality of possible classes of data and a display to display the class of data; wherein the processor is further configured to: receive user input at least one of (i) indicating that the displayed class of data is acceptable, or (ii) indicating that the displayed class of data should be edited and editing the displayed class of data; receive user input indicating that the displayed class of data should be processed; in response to receiving the user input indicating that the displayed class of data should be processed, request that the user input a password; and perform the predetermined function associated with the class of data in response to validating the password.