XPost: alt.comp.os.windows-xp, alt.windows7.general, alt.msdos.batch.nt   
   From: mariasophia@comprehension.com   
      
   J. P. Gilliver wrote:   
   >> And, the point is: Usenet *is* a text-only medium, by definition and   
   >> decree, even if lots of people have abused it over the years.   
   >   
   > People have been requesting screenshots - and in response, people have   
   > been uploading them to file/image sharing sites, and posting the URL of   
   > the uploaded file (thus remaining within "text-only" rules) - for years,   
   > decades I think.   
      
   And, I might add, since of the million things we should know about privacy,   
   we only know about six of them, PNRU fingerprinting becomes unreliable once   
   people upload images online after destroying the subtle sensor-noise   
   patterns those fingerprinting technique depend on.   
       
      
   PNRU (Photo-Response Non-Uniformity) relies on tiny, device-specific noise   
   patterns which we obfuscate as a privacy hygiene habit BEFORE we post them.   
      
   Those are screenshots, and not camera images, but if we don't know this   
   tidbit about privacy, we allow our cameras to be uniquely identified.   
      
   This won't bother most of us, but let's say someone posts to two different   
   social media sites using the same camera as when they post to Usenet.   
      
     *The camera 'can' uniquely be tracked across all three postings.*   
      
   As processing power and storage gets better and better, the more it will be   
   that we're tracked by our own online activities, such as this screenshot.   
       
   --   
   Privacy is knowing how to do the simplest of things, all day, every day.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)