Stop scanning QR codes, you dolts
pndy
13 points
6 comments
June 04, 2026
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Discussion Highlights (6 comments)
thenthenthen
Im in China, I scan ~10-30 qr codes daily. Everything from social contacts, logins, payments work with QR codes.
m-p-3
QR codes are nonetheless useful at bridging the gap between the digital and physical world. You have a physical copy of a document and you want to retrieve the latest digital copy? A QR code on the cover page or on the document footer works well from the printed copy. You need to copy/transfer a tiny snippet of information from a computer to another device without relying on a computer network? Generate a QR code and scan it from the other device. And there are other use case if you rely on URI scheme, such as crafting an email template that prefills the destination, the object of the message and the body, etc. One of the potential issue is that they aren't digitally signed, so you cannot validate their integrity or origin so you need to be careful about what you scan in a public setting.
Thin_icE
I don't understand the reasoning, scanning a qt code provides a URL that the user may or may not visit. How is this an issue? I do agree that passkeys are problematic, though.
snypher
Stop giving me cookie popups for a blog post, you dolts.
erelong
And then, there's NFC tags...
RetroTechie
Author is confusing a technology (QR codes) with some of its applications. QR codes (the tech) is fine, can do things that you can't do (well) with say, a barcode, and/or is better suited than other technologies under some circumstances. Some uses bad? Scanning QR codes stupid, the codes containing privacy-eroding identifiers, OSes snooping everything you scan, or whatever? Maybe - it depends. A seasoned pro like this author (see "About" page) would do better to dissect one of those 'bad' applications, and explain how/why that application is bad. Not rant against QR codes in general - that makes no sense.