Map makers have done this for a very long time: https://en.wikipedia.org/wiki/Tr... | Hacker News

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		zh3 7 months ago \| parent \| context \| favorite \| on: Why do people keep writing about the imaginary com... Map makers have done this for a very long time: https://en.wikipedia.org/wiki/Trap_street

fer 7 months ago [–]

Also related https://en.wikipedia.org/wiki/Canary_trap

thewanderer1983 7 months ago | [–]

Similiar tech was used for screeners to try and track leakers. https://en.m.wikipedia.org/wiki/Screener_(promotional) Printer Tracking dots is another example. https://en.m.wikipedia.org/wiki/Printer_tracking_dots

For those interested in modern solutions. Look at watermark researchpapers.r

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