[HN Gopher] Dolla dolla bill, y'all: Reverse engineering a bankn...
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       Dolla dolla bill, y'all: Reverse engineering a banknote validator
        
       Author : voxadam
       Score  : 20 points
       Date   : 2025-05-13 14:08 UTC (8 hours ago)
        
 (HTM) web link (something.fromnothing.blog)
 (TXT) w3m dump (something.fromnothing.blog)
        
       | 0898 wrote:
       | I thought this was a fascinating read. To cut a long story short,
       | he thought these cheap bank note detectors would be easy to fool.
       | 
       | But they measure several things at once, which are extremely hard
       | to mimic in aggregate.
        
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       (page generated 2025-05-13 23:01 UTC)