comment: >
  
  I'll bite:
  Would love if you could share a source explaining more about how this is done in practice? And is it only under lab conditions, or has there been a practical exploit?
  I understand how this might work in concept -- say a standard 6-pin house key -- but there must be some pretty specific conditions for it to work, even in a lab.
  (e.x. Background noise, machining tolerances of the lock, etc. etc.)
context: This is a friendly reminder to read our rules.
  Remember, /r/Showerthoughts is for showerthoughts, not "thoughts had in the shower!"
  (For an explanation of what a "showerthought" is, please read this page.)
  Rule-breaking posts may result in bans. >
  
  Argentina produced the first animated feature film ever. Not Disney. >
  
  Careful. If word gets out, Disney might nuke Argentina. >
  
  An audio recording of a lock being opened provides enough data to reproduce the key required to open that lock, even with a cell phone's microphone.