[HN Gopher] F3 - Fight Flash Fraud
       ___________________________________________________________________
        
       F3 - Fight Flash Fraud
        
       Author : CTOSian
       Score  : 15 points
       Date   : 2024-09-09 09:16 UTC (3 days ago)
        
 (HTM) web link (fight-flash-fraud.readthedocs.io)
 (TXT) w3m dump (fight-flash-fraud.readthedocs.io)
        
       | Animats wrote:
       | Somebody should make this up as a handheld device. Something that
       | you can use to inspect new items, and retailers can use to
       | inspect what their suppliers are sending them.
       | 
       | Can a Flipper Zero be programmed for this? It connects to Micro
       | SD cards and USB ports.
        
       | ajb wrote:
       | So this always overwrites the device to test it, and I was
       | wondering if that was necessary (say, you had started using it).
       | Presumably you only need to write at most N+1 blocks, where N is
       | the number of blocks the device _actually_ has.l, in order to
       | detect exaggeration. But at that point the fake device will have
       | overwritten all of your files anyway, even if they were
       | theoretically on different blocks (of the exaggerated inventory).
       | So I guess the minimum harm to test a device is to hash all your
       | files, then write at most N+1 (unused) blocks, stopping after
       | each to check if any of your files got harmed. In theory that
       | risks at most one block...
       | 
       | Of course, it's better to back up the suspect one.
        
       ___________________________________________________________________
       (page generated 2024-09-12 23:00 UTC)