well-temperedforum.groupee.net    The Well-Tempered Forum  Hop To Forum Categories  Off Key    Printers and microdots

Moderators: QuirtEvans, pianojuggler, wtg
Go
New
Find
Notify
Tools
Reply
  
Printers and microdots
 Login/Join
 
wtg
Has Achieved Nirvana
Picture of wtg
posted
I had no idea.

quote:
Why Printers Add Secret Tracking Dots

They’re almost invisible but contain a hidden code – and their presence on a leaked document has sparked speculation about their usefulness to FBI investigators.


https://getpocket.com/explore/...source=pocket-newtab


--------------------------------
When the world wearies and society ceases to satisfy, there is always the garden - Minnie Aumônier

 
Posts: 38234 | Location: Somewhere in the middle | Registered: 19 January 2010Reply With QuoteReport This Post
Axtremus
Minor Deity
Picture of Axtremus
posted Hide Post
This thing is real!

After reading up on this "microdot" stuff, I ordered a couple of blue LED light bulbs online. I received the bulbs today and tried it on a page of color printer printout, and I see these microdots.

I also looked at a page of black-and-white only printout, and there is no "microdot" that is visible to my naked eye.


--------------------------------
www.PianoRecital.org -- my piano recordings -- China Tune album

 
Posts: 12732 | Registered: 01 December 2006Reply With QuoteReport This Post
  Powered by Social Strata  
 

    well-temperedforum.groupee.net    The Well-Tempered Forum  Hop To Forum Categories  Off Key    Printers and microdots