Qr codes concept and security

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This topic contains 0 replies, has 1 voice, and was last updated by  BrianMiz 1 month ago.

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    hello guys , nice subreddit one of my fav tbh checking it daily , but sadly can’t find more posts talking about qr codes and qr codes in events tickets to be more specific , i already googled about it but nothing important , BUT i found out that most of E-tickets companies have a little problem which is the server can allow 2 ppl pass if the same QR CODE is scanned at the same time , so i think that’s a BUG ppl can use sadly ,if anyone know more about this or have some experiences with QR codes hacking and of course give us some ideas and tips for better security. would be nice ^^ thanks in advance.

    Also i have an old ticket that ppl use it for the 2 exact time trick : [http://prntscr.com/ohloy8](http://prntscr.com/ohloy8)

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