Software that tweaks photos to hide them from facial recognition:
A start-up called Clearview AI, for example, scraped billions of online photos to build a tool for the police that could lead them from a face to a Facebook account, revealing a person’s identity.
Now researchers are trying to foil those systems. A team of computer engineers at the University of Chicago has developed a tool that disguises photos with pixel-level changes that confuse facial recognition systems.This Tool Could Protect Your Photos From Facial Recognition
This is of course just an arms race. The facial recognition will improve, the hiding software will get tweaked.