You take some carefully crafted images that look like random noise, fed them to a neural net/AI/machine learning proggie, and get it... ...
I'm not sure how dangerous this would be in the real world: it seems to be more of a proof-of-concept type of thing. (But then, nobody thought data files were very dangerous before 1994 ...)
Other posts: https://community.isc2.org/t5/forums/recentpostspage/user-id/1324864413
This message may or may not be governed by the terms of