Re: Recognising (or not) QR codes

From	Arno Welzel <usenet@arnowelzel.de>
Newsgroups	comp.mobile.android
Subject	Re: Recognising (or not) QR codes
Date	2025-07-06 12:55 +0200
Message-ID	<mcv303F7rf1U3@mid.individual.net> (permalink)
References	(7 earlier) <slrn106ctaj.1c51.trepidation@vps.jonz.net> <104678i$1mopc$1@solani.org> <1046sld.7gk.1@ID-201911.user.individual.net> <10492hk$1joq$1@nnrp.usenet.blueworldhosting.com> <codes-20250704193000@ram.dialup.fu-berlin.de>

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Stefan Ram, 2025-07-04 20:30:

> Marion <marion@facts.com> wrote or quoted:
>> To them, if one QR code is malicious, all QR codes are malicious.
> 
>   If just one QR code out of a hundred is bad, that means you
>   have a one percent shot at running into a malicious one.

What is a "malicious QR code"? The same as a "malicious link"?

Well - if you get a phishing mail which contains a link which claims to
bring you to your online banking account, you should not trust that, of
course.

But does this means, that links in general are malicious?

>   Security is all about checking everything in a group, since
>   you never know which ones might be sketchy. Like, here in
>   Berlin, if you show up to a concert with a bag, some guy is
>   going to look through it. Even if hardly any bags have anything
>   they shouldn't, they still have to check every single one.

This is not only the case in Berlin but most likely in *every* big
concert where they have higher security.



-- 
Arno Welzel
https://arnowelzel.de

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Recognising (or not) QR codes Chris Green <cl@isbd.net> - 2025-07-01 15:15 +0100
  Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-01 15:39 +0100
    Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-01 14:57 +0000
      Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-01 16:12 +0100
        Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-01 15:25 +0000
        Re: Recognising (or not) QR codes Theo <theom+news@chiark.greenend.org.uk> - 2025-07-01 18:07 +0100
  Re: Recognising (or not) QR codes VanguardLH <V@nguard.LH> - 2025-07-01 11:24 -0500
  Re: Recognising (or not) QR codes Arno Welzel <usenet@arnowelzel.de> - 2025-07-01 20:20 +0200
    Re: Recognising (or not) QR codes Chris Green <cl@isbd.net> - 2025-07-01 19:55 +0100
      Re: Recognising (or not) QR codes "Carlos E.R." <robin_listas@es.invalid> - 2025-07-01 21:15 +0200
      Re: Recognising (or not) QR codes VanguardLH <V@nguard.LH> - 2025-07-01 20:03 -0500
        Re: Recognising (or not) QR codes Chris Green <cl@isbd.net> - 2025-07-02 07:09 +0100
          Re: Recognising (or not) QR codes Jörg Lorenz <hugybear@gmx.net> - 2025-07-02 08:48 +0200
            Re: Recognising (or not) QR codes Chris Green <cl@isbd.net> - 2025-07-02 08:07 +0100
              Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-02 09:00 +0100
                Re: Recognising (or not) QR codes Yusuf Khan <yusuf.khan.nospam@ptcl.net.pk> - 2025-07-02 22:03 +0500
                Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-02 18:41 +0100
              Re: Recognising (or not) QR codes Jörg Lorenz <hugybear@gmx.net> - 2025-07-02 10:05 +0200
              Re: Recognising (or not) QR codes "Carlos E.R." <robin_listas@es.invalid> - 2025-07-02 12:38 +0200
                Re: Recognising (or not) QR codes Jörg Lorenz <hugybear@gmx.net> - 2025-07-02 17:00 +0200
                Re: Recognising (or not) QR codes Frank Slootweg <this@ddress.is.invalid> - 2025-07-02 15:31 +0000
                Re: Recognising (or not) QR codes Jörg Lorenz <hugybear@gmx.net> - 2025-07-03 15:54 +0200
          Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-02 08:11 +0100
            Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-02 17:08 +0000
            Re: Recognising (or not) QR codes Arno Welzel <usenet@arnowelzel.de> - 2025-07-03 17:24 +0200
          Re: Recognising (or not) QR codes VanguardLH <V@nguard.LH> - 2025-07-02 08:24 -0500
            Re: Recognising (or not) QR codes Jörg Lorenz <hugybear@gmx.net> - 2025-07-02 17:02 +0200
              Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-02 18:40 +0100
              Re: Recognising (or not) QR codes "Carlos E.R." <robin_listas@es.invalid> - 2025-07-02 20:11 +0200
                Re: Recognising (or not) QR codes Frank Slootweg <this@ddress.is.invalid> - 2025-07-03 13:41 +0000
                Re: Recognising (or not) QR codes "Carlos E.R." <robin_listas@es.invalid> - 2025-07-03 20:13 +0200
                Re: Recognising (or not) QR codes Frank Slootweg <this@ddress.is.invalid> - 2025-07-03 19:31 +0000
                Re: Recognising (or not) QR codes "Carlos E.R." <robin_listas@es.invalid> - 2025-07-03 22:35 +0200
                Re: Recognising (or not) QR codes Arno Welzel <usenet@arnowelzel.de> - 2025-07-06 12:50 +0200
              Re: Recognising (or not) QR codes Allodoxaphobia <trepidation@example.net> - 2025-07-03 12:19 +0000
                Re: Recognising (or not) QR codes Jörg Lorenz <hugybear@gmx.net> - 2025-07-03 17:22 +0200
                Re: Recognising (or not) QR codes Arno Welzel <usenet@arnowelzel.de> - 2025-07-03 17:26 +0200
                Re: Recognising (or not) QR codes Jörg Lorenz <hugybear@gmx.net> - 2025-07-03 18:17 +0200
                Re: Recognising (or not) QR codes Arno Welzel <usenet@arnowelzel.de> - 2025-07-06 12:52 +0200
                Re: Recognising (or not) QR codes Frank Slootweg <this@ddress.is.invalid> - 2025-07-03 19:28 +0000
                Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-04 17:20 +0000
                Re: Recognising (or not) QR codes ram@zedat.fu-berlin.de (Stefan Ram) - 2025-07-04 18:30 +0000
                Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-04 19:47 +0100
                Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-04 23:59 +0000
                Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-04 18:51 +0000
                Re: Recognising (or not) QR codes "Carlos E.R." <robin_listas@es.invalid> - 2025-07-05 20:10 +0200
                Re: Recognising (or not) QR codes Arno Welzel <usenet@arnowelzel.de> - 2025-07-06 12:55 +0200
            Re: Recognising (or not) QR codes Frank Slootweg <this@ddress.is.invalid> - 2025-07-02 15:44 +0000
              Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-02 17:16 +0000
              Re: Recognising (or not) QR codes VanguardLH <V@nguard.LH> - 2025-07-02 22:18 -0500
                Re: Recognising (or not) QR codes "Carlos E.R." <robin_listas@es.invalid> - 2025-07-03 11:24 +0200
                Re: Recognising (or not) QR codes Frank Slootweg <this@ddress.is.invalid> - 2025-07-03 19:08 +0000
        Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-02 08:05 +0100
          Re: Recognising (or not) QR codes Jörg Lorenz <hugybear@gmx.net> - 2025-07-02 10:29 +0200
          Re: Recognising (or not) QR codes "Carlos E.R." <robin_listas@es.invalid> - 2025-07-02 12:43 +0200
            Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-02 11:53 +0100
              Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-02 17:49 +0000
          Re: Recognising (or not) QR codes Marion <marion@facts.com> - 2025-07-02 17:32 +0000
            Re: Recognising (or not) QR codes Andy Burns <usenet@andyburns.uk> - 2025-07-03 00:34 +0100
      Re: Recognising (or not) QR codes Arno Welzel <usenet@arnowelzel.de> - 2025-07-03 17:22 +0200

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