1. A system, comprising:a processing circuit; and
logic integrated with the processing circuit, executable by the processing circuit, or integrated with and executable by the processing circuit, the logic being configured to cause the processing circuit to:
receive an eye gaze of a source user generated by a source augmented reality or virtual reality device (source AR/VR device) on a receiver AR/VR device;
determine gazed content from the eye gaze of the source user using a password key phrase determination feature;
generate a symmetric password key utilising the gazed content according to a set of password determination rules; and
perform an operation using the receiver AR/VR device, the operation being secured by the symmetric password key,
wherein the symmetric password key is not exchanged with any other device,
wherein the operation secured by the symmetric password key is selected from the group consisting of: a data transfer, determination of access rights for the source user, licensing of an application configured to operate on the source AR/VR device, and authentication of an identity of the source user.