> “Like snowflakes, no two smartphones are the same. Each device, regardless of the manufacturer or make, can be identified through a pattern of microscopic imaging flaws that are present in every picture they take,” says Kui Ren, lead author of a new study describing the smartphone-identifying technology. “It’s kind of like matching bullets to a gun, only we’re matching photos to a smartphone camera.”
https://www.futurity.org/smartphones-cameras-prnu-1634712-2/