Why printers add secret tracking dots (2020)

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

Read in full here:

This thread was posted by one of our members via one of our news source trackers.


Corresponding tweet for this thread:

Share link for this tweet.

1 Like

Yikes. No surprise. I just wonder if B&W have another method of adding the tracking info. Probably the laser can burn those patterns in an almost-invisible manner on the paper? Would be very curious to know.