Am aware of a high school that tried to use a Chromecast for digital signage (not this particular software) on the same network as students (woops)... needless to say the screen wasn't showing their digital signage for long! After a prankster played a few "educational" videos for the whole cafeteria, school admin panic ensued and that was the end of the Chromecast for signage plan.
(This scenario wouldn't happen of course on a network where you have 100% trust that no-one else is going to hit the Chromecast button on their browser or phone...)
(This scenario wouldn't happen of course on a network where you have 100% trust that no-one else is going to hit the Chromecast button on their browser or phone...)