I noticed a few days ago that someone had put up two signs on a local, fairly busy, road. They were cloth signs with the following painted on them, "Covid vax heart attacks", and on the other "Covid shots blood clots". Pretty effective; short and sweet. I would have taken photos, but if I want to download photos to my computer, for posting here, I have to take them with my digital camera, download to a laptop computer in our house, for transfer to my laptop that I use for posting things here. (my laptop sd card reader quit working a couple years ago) It looked like a county highway department truck was in the process of taking them down, but a few thousand people probably saw them while they were up.
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The photo applications can embed tracking information into images without your knowledge using stociatic noise as I understand it. Don't quote me but the technology exists. https://link.springer.com/chapter/10.1007/978-981-15-5191-8_11 I just think you were smart to not upload a personal image without processing it first with noise reduction.
You’re saying that simply by having your photo on windows and/or using their photo viewing app that this info gets embedded into the photo? Got any supporting info on that claim? I couldn’t find anything with a quick search. Wouldn’t surprise me but I’ve never heard that claim before
https://www.snopes.com/fact-check/household-printers-tracking-code/
Similar technology has existed for years in the physical space.
20 years ago there was a plug in for Photoshop that could encode/decode an image. I used it a few times. Sadly certain things are not so easy to find on the search engines these days.
You would be at a disadvantage to assume this is not the case for image processing in video cards of consumer machines.
Just use a denoiser in photoshop to zap your images just in case. It's just prudent.
https://link.springer.com/chapter/10.1007/978-981-15-5191-8_11
Yeah this process is called steganography. It should be very easy to confirm that Windows is doing this though, image encoding should be deterministic afaik if you're not using compression. Just save a bmp as png or gif or whatever on Windows and Linux, and check the hashes.
Where I grew concerned was on a malfunctioning laptop. The image generation in windows I learned was processing through the graphics system and not direct to screen. If you preented an image the hardware would introduce artifacts into every saved image. When the image corruption was reintroduced into the image saved it became a concern.
You would need to test using a known safe system as the image pipeline could introduce and remove artifacts realtime without you being aware. The shared image could be sent through Cisco's network hardware, processed and cleaned without you being aware.
It's not beyond the realm of possibilities.