It seems to me that one way of solving deep fakes is to attach an authenticity marker to video and audio clips. The secure marker would include the creator's certificate of origin. If some nefarious news outlet start publishing deep fake news on Facebook or Twitter it would be easy to flag them. If someone publishes a clip without a valid marker, Facebook and Twitter could then limit its reach.
It seems to me that one way of solving deep fakes is to attach an authenticity marker to video and audio clips. The secure marker would include the creator's certificate of origin. If some nefarious news outlet start publishing deep fake news on Facebook or Twitter it would be easy to flag them. If someone publishes a clip without a valid marker, Facebook and Twitter could then limit its reach.