𝔗𝚎𝚑 𝔅𝚊𝚖𝚜𝚔𝚒@lemmy.world to Ask Lemmy@lemmy.world · 2 years agoWhat's something that feels illegal to know?message-squaremessage-square290fedilinkarrow-up1267arrow-down17
arrow-up1260arrow-down1message-squareWhat's something that feels illegal to know?𝔗𝚎𝚑 𝔅𝚊𝚖𝚜𝚔𝚒@lemmy.world to Ask Lemmy@lemmy.world · 2 years agomessage-square290fedilink
minus-squareTheGreenGolem@lemm.eelinkfedilinkarrow-up64·2 years agoThe invisible tracking dots in almost every printer. https://www.bbc.com/future/article/20170607-why-printers-add-secret-tracking-dots https://en.m.wikipedia.org/wiki/Machine_Identification_Code
minus-squareBlackmist@feddit.uklinkfedilinkEnglisharrow-up15·2 years agoSimilarly, there’s patterns of circles on banknotes that prevent you scanning them or loading them into Photoshop.
minus-squarebfg9k@lemmy.worldlinkfedilinkarrow-up8·2 years agoI actually tried this and our office scanner refused to scan it, threw an error each time. Worked fine with a regular document.
minus-squareBlackmist@feddit.uklinkfedilinkEnglisharrow-up7·2 years agoYeah, it’s mostly this. https://en.wikipedia.org/wiki/EURion_constellation Although I think there are a couple of other methods in play.
The invisible tracking dots in almost every printer.
https://www.bbc.com/future/article/20170607-why-printers-add-secret-tracking-dots
https://en.m.wikipedia.org/wiki/Machine_Identification_Code
Similarly, there’s patterns of circles on banknotes that prevent you scanning them or loading them into Photoshop.
I actually tried this and our office scanner refused to scan it, threw an error each time. Worked fine with a regular document.
Yeah, it’s mostly this.
https://en.wikipedia.org/wiki/EURion_constellation
Although I think there are a couple of other methods in play.