@ErikUden why my printers are old as fuck
@scrum @ErikUden this has been the case for as long as I remember (been in the industry since 1996), photocopiers too...
@ErikUden well they changed the way they do it now, it's even sneakier than before apparently
@jessew @ErikUden I'
m morbidly curious
@donkeyblam @ErikUden we have no idea how they do it now, the yellow dots thing was discovered by accident
Euer Drucker packt geheime Botschaften aufs Papier – das könnt ihr dagegen tun

Fast jedes Dokument aus einem Laserdrucker lässt sich zurückverfolgen, Grund dafür sind fürs Auge unsichtbare Codes der Hersteller. Hacker erklären, warum das gefährlich ist und mit welchem Trick ihr anonym drucken könnt.

@ErikUden motherfuck the intercept forever for burning reality winner
@ErikUden When I worked in a print shop, running a collection of Xerox printers, one of my services techs was in troubleshooting an issue and showed me the yellow dots on a print that was only half fused as they're much easier to see when it's loose toner before they're fused. I'd known about this before that, so it was mostly just a curiosity at that point.
@ErikUden That was part of a CTF once.
@ErikUden Some code meanings from some companies are not even known by the general public. If you want to see it you need a blue light.
@ErikUden ok wasn't paper supposed to be like secure ffs
@ErikUden what the fuck is this horrid edit you have brought upon me
@ErikUden Black-only laser printers don't do this, and they are much cheaper to operate, so best to use them when color isn't needed.

@not2b @ErikUden nope.
Some B&W do that too!
It depends on the model and manufacturer, but unless you lab-check them for #MicroDots chances are you don't know for shure...

In fact, @theintercept being run by absolute idiots is why #RealityWinner got caught!

@kkarhan @ErikUden @theintercept If a printer is physically incapable of making a yellow dot, there are no yellow dots. Reality Winner was caught because she used a color printer, even though she printed in B&W, but in her case they didn't even need the dots, the NSA system logged all print jobs so they still could have found her.
@ErikUden damn cant even trust paper
@ErikUden I was a copier repairman many moons ago and IIRC it was originally created to catch potential counterfeiters, though as of at least 15 years ago new copiers automatically detected money and printed a blank page if you tried (though you could get around that if you knew certain codes.)