![]() Here's my current understanding of the "texting a picture" process. Did they at least receive the same picture? Well, unless they use the same carrier and same version of the same SMS app, the answer is "probably not". Do they receive the same picture as the one you sent (full metadata, full size, same SHA1 checksum)? Probably not. As it turns out, the entire delivery process for texted pictures is just one bad handling process after another.Ĭonsider this: You take a photo with your smartphone and text it to two friends. Sometimes the picture arrives with original metadata, sometimes the metadata has been replaced, and sometimes there is no useful metadata left. I've been testing pictures that have been texted and I just couldn't get consistent results. I used to think that screenshots or pictures from scanners were as bad as it could get. At minimum, they have some adware that is bypassing their ad blocker. That ad didn't come from me, so they've got a problem. And yet, there is an ad at the bottom of the screenshot. My own site (shown in their screen capture) doesn't use ads. See the little "No Ad" logo in the top left corner? This user should have an ad-blocker installed. I was able to determine one thing for this user: their mobile device was infected with adware/spyware. While my tools can easily identify the scaling and color correction, they can't tell you if the head was pasted on the body or if anything else was altered. It tells me nothing about the picture on the web page in the browser on the desktop. ![]()
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