I doubt they'd do it via this system. It should be easy to strip this metadata, in fact that is essentially a requirement to make the photo readable on image vi

I doubt they'd do it via this system. It should be easy to strip this metadata, in fact that is essentially a requirement to make the photo readable on image viewers unaware of it However if it came out that manufacturers were secretly storing a "fingerprint" of the noise profile of each image sensor and sharing it with the government, I'm afraid I wouldn't be entirely surprised Remember https://en.wikipedia.org/wiki/Machine_Identification_Code https://en.wikipedia.org/wiki/Machine_Identification_Code