Comment by vegetablepotpie

How likely are perceptual hashes to give a false positive? If I take a picture of a tree, how likely is it that a few pixels are going to line up just right in a hashing algorithm and say it might be child porn? How likely is it that law enforcement is going to understand the limitations of this technology? How likely is it that the judicial system will understand the limitations?

I can see law enforcement showing up at my door one day with a search warrant demanding to have a look around, and I would have no idea why they’re there, but they’ll want to look through all my personal belongings.

Worse yet, I might come home from work one day, see my windows broken, see my place has been ransacked and my computers are missing. I would call the police to report a burglary only to hear than that I’m under investigation and they need me to give them the key to decrypt my hard drives.