An electronic device comprising: a first display configured to output visual stimuli; a second display configured to output visual stimuli; one or more first processors coupled to the first display; one or more second processors coupled to the second display and separate from the one or more first processors; and a first computer-readable storage medium containing first instructions, that, when executed by the one or more first processors, cause the one or more first processors to perform first actions including: transmitting a content request communication from the electronic device to a web server; receiving a response communication from the web server, the response communication comprising content identifying a first value; and facilitating a first presentation of the content at the first display; and a second computer-readable storage medium containing second instructions, that, when executed by the one or more second processors, cause the one or more second processors to perform second actions including: receiving a communication from a remote server comprising data representing a second value, the communication having been generated at the remote server in response to receipt of another communication from the web server; generating a secure verification output representative of the second value; and facilitating a second presentation of the secure verification output at the second display such that the second presentation of the secure verification output is concurrent with the first presentation of the content, wherein the second display is separate from the first display. a first display configured to output visual stimuli; a second display configured to output visual stimuli; one or more first processors coupled to the first display; one or more second processors coupled to the second display and separate from the one or more first processors; and a first computer-readable storage medium containing first instructions, that, when executed by the one or more first processors, cause the one or more first processors to perform first actions including: transmitting a content request communication from the electronic device to a web server; receiving a response communication from the web server, the response communication comprising content identifying a first value; and facilitating a first presentation of the content at the first display; and transmitting a content request communication from the electronic device to a web server; receiving a response communication from the web server, the response communication comprising content identifying a first value; and facilitating a first presentation of the content at the first display; and a second computer-readable storage medium containing second instructions, that, when executed by the one or more second processors, cause the one or more second processors to perform second actions including: receiving a communication from a remote server comprising data representing a second value, the communication having been generated at the remote server in response to receipt of another communication from the web server; generating a secure verification output representative of the second value; and facilitating a second presentation of the secure verification output at the second display such that the second presentation of the secure verification output is concurrent with the first presentation of the content, wherein the second display is separate from the first display. receiving a communication from a remote server comprising data representing a second value, the communication having been generated at the remote server in response to receipt of another communication from the web server; generating a secure verification output representative of the second value; and facilitating a second presentation of the secure verification output at the second display such that the second presentation of the secure verification output is concurrent with the first presentation of the content, wherein the second display is separate from the first display.