Tamarra and Deborah et al,



Thank you for your posts and questions.



Thanks to Erich I was able to create a QR code with zint although it
doesn’t seem to allow me to add our County Library logo.



It does give me pause re: how that QR code could be used nefariously?



If I just invite a person to read my QR code with their cell phone QR
reader could they misappropriate that QR code for unapproved activity?



Fascinating conversation.



I so appreciate all these helpful posts.



Charles.





Date:    Thu, 30 Nov 2023 09:12:50 -0800
From:    Tamara Marnell <[log in to unmask]>
Subject: Re: QR Code replacement for business card

A QR code just represents a string. If anything gets embedded, it will be
visible in the text. Like in Joe's example, you'd see a different domain
that forwards to the URL you wanted. If you test it and the decoded string
is exactly what you put into the generator, it's fine. (Whether the website
you visited to generate that code is safe is a different question, so I
second the recommendation of Zint or the tools built into your browser.)

Most security risks of QR codes are really to the users. If the codes are
posted in public places--like those little cards on restaurant tables to
pay for your meal--someone could theoretically cover them up with a
different code that tricks patrons into giving away their sensitive
information, or downloads malware to their phones, etc.

-Tamara