“When such algorithms are used to detect criminal activities, especially at Apple scale, many innocent people can potentially face serious problems.”
This founder matches 100 million stock photos with perceptual hashes for a living. Two images with nothing in common collide because both have a beige background and dark accents. At his company, a false match means a customer clicks a correction button. At Apple, it means a stranger looks through your photos. Apple puts the odds at one in a trillion and doesn’t show the math.