Example electronic devices are disclosed. In some examples, the electronic device includes a display panel, an image sensor, and a controller coupled to the image sensor. The controller is to use the image sensor to detect an interaction between a first viewer of the display panel and a second viewer of the display panel. In addition, the controller is to determine whether the second viewer is authorized to view information presented on the display panel based on the interaction. Further, the controller is to adjust a presentation of the information on the display panel based on the determination.