Post by Mickey DBe careful - they can lift a fingerprint off a digital photo.
https://ichef.bbci.co.uk/news/1024/cpsprodpb/07f9/live/65b1da70-07be-11ef-8533-c557f743cc78.png
From teenage cyber-thug to Europe’s most wanted
https://www.bbc.com/news/articles/cyxe9g4zlgpo
They got the fingerprints because he posted an image of his fingers
online and this was compared with his fingers when he was in custody.
That's how they proved that the anon chap is the same person they have
got in their custody. So moral of the story is don't be stupid to post
images of your body parts if you are going to commit any cyber crimes
hoping to get away by being anonymous.
Thank you for explaining the story for those who haven't read it yet.
What's not in that story is that they can also often identify which camera
an original photo came from (which means they can cross correlate photos
that you post to various sites on the net if they want to do that).
That is, if you post a photo to forum 1 and another photo to forum 2, in
some cases they can correlate the sensor fingerprint to your unique camera.
Just to be clear, I'm not talking about metadata as sensor fingerprints
work for all photo formats - as the forensics identify the camera through
unique repetitive imperfections in each camera sensor's digital output.
https://theconversation.com/explainer-how-law-enforcement-decodes-your-photos-78828
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7254/1/Large-scale-test-of-sensor-fingerprint-camera-identification/10.1117/12.805701.short
"This paper presents a large scale test of camera identification
from sensor fingerprints."
However, if you modify that original image substantially, their forensics
are increasingly less than perfect depending on how well you modify them.
