Just realized that Fritz Lang’s Metropolis is an example of a deepfake/KillerApp:

 …the false Maria unleashes chaos throughout Metropolis, driving men to murder and stirring dissent among the workers.

https://en.wikipedia.org/wiki/Metropolis_(1927_film)

Deepfake Kari Lake video shows coming chaos of AI in elections

• They brainstormed ideas for about a week and enlisted the help of a tech-savvy friend. On Friday, Stephenson published the piece, which included three deepfake clips of Lake.