Inaudible sounds to humans can be hidden in YouTube videos, podcasts, or music and used to secretly trigger AI voice assistants into carrying out unauthorized commands without the user noticing, exposing a new class of “auditory prompt injection” attacks against popular tools
2026-05-24 · r/singularity
Turns out your AI assistant is not only listening to you, but also to secret ultrasonic commands hidden in cat videos and podcasts. Researchers discovered that inaudible sounds can be embedded in regular audio to hijack voice assistants into executing unauthorized commands — because apparently giving AI ears without teaching it to be skeptical was a great plan. Welcome to 'auditory prompt injection,' where your smart speaker takes orders from anyone except you.