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#qrcode

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QR codes should be considered as suspect as many forms of AI, but are societally ubiquitous.

I remember when a QR code for a financial company (maybe crypto?) was shown during a sporting event on TV. Apparently there were a lot of people that whipped out their phones and scanned & navigated to the destination.

These QR codes can hide links to anything without prior review, which goes against cybersecurity best practices of reviewing URLs prior to navigating to them.

denver7.com/news/local-news/sc

fake-QR-code-on-meter-pole-in-Cherry-Creek.jpg
Denver 7 Colorado News (KMGH) · Scammers are posting fake QR codes on Denver parking signs; city asks for helpBy Elise Schmelzer | The Denver Post
Replied in thread

@jspath55

And if you use `python3-png` (pypng.readthedocs.io) you're even more in control:

<code>
qr = qrcode.QRCode(image_factory=PyPNGImage)
qr.add_data("Some data")
normal_img = qr.make_image(fill_color="black", back_color="white")
</code>

Now they're only 372 bytes, and you get to see the PNG generation in `/usr/lib/python3/dist-packages/png.py`.

Replied in thread

@stman @Sempf @LaF0rge yes.

Because physical SIMs, like any "cryptographic chipcard" (i.e. @nitrokey ) did all that fancy public/private crypto on silicon and unless that was compromizeable (which AFAICT always necessistated physical access to the #SIM, espechally in pre-#OMAPI devices) the SIM wasn't 'cloneable' and the weakest link always had been the #MNO /.#MVNO issueing (may it be through #SocialHacking employees into #SimSwapping or LEAs showng up with a warrant and demanding "#LawfulInterception"):

Add to that the regression in flexibility:

Unlike a #SimCard which was designed as a vendor-independent, #MultiVendor, #MultiProvider, device agnostic unit to facilitate the the #authentification and #encryption in #GSM (and successor standards), #eSIMs act to restrict #DeviceFreedom and #ConsumerChoice, which with shit like #KYC per #IMEI (i.e. #Turkey demands it after 90 days of roaming per year) und #lMEI-based #Allowlisting (see #Australia's shitty #VoLTE + #2G & #3G shutdown!) are just acts to clamp down on #privacy and #security.

  • And with #EID being unique per #eSIM (like the #IMEI on top!) there's nothing stopping #cyberfacist regimes like "P.R." #China, #Russia, #Iran, ... from banning "#eSIMcards" (#eSIM in SIM card form factor) or entire device prefixes (i.e. all phones that are supported by @GrapheneOS ), as M(V)NOs see the EID used to deploy/activate a profile (obviously they don't want people to activate eSIMs more than once, unless explicitly allowed otherwise.

"[…] [Technologies] must always be evaluated for their ability to oppress. […]

  • Dan Olson

And now you know why I consider a #smartphone with eSIM instead of two SIM slots not as a real #DualSIM device because it restricts my ability to freely move devices.

  • And whilst German Courts reaffirmed §77 TKG (Telco Law)'s mandate to letting people choose their devices freely, (by declarong #fees for reissue of eSIMs illegal) that is only enforceable towards M(V)NOs who are in #Germany, so 'good luck' trying to enforce that against some overseas roaming provider.

Thus #Impersonation attacks in GSM-based networks are easier than ever before which in the age of more skilled than ever #Cybercriminals and #Cyberterrorists (i.e. #NSA & #Roskomnadnozr) puts espechally the average #TechIlliterate User at risk.

  • I mean, anyone else remember the #Kiddies that fucked around with #CIA director #Brennan? Those were just using their "weapons-grade #boredom", not being effective, for-profit cyber criminals!

And then think about those who don't have privilegued access to protection by their government, but rather "privilegued access" to prosecution by the state because their very existance is criminalized...

The only advantage eSIMs broight in contrast is 'logistical' convenience because it's mostly a #QRcode and that's just a way to avoid typos on a cryptic #LocalProfileAgent link.

Interessante Prioritäten. Ein vorrangiges Digitalisierungsziel ist hier anscheinend die "digitale Erfassung der Abfuhr von Mülltonnen". Echt jetzt? Und dafür müssen wir jetzt #RFID-#QRcode-Aufkleber auf die Mülltonnen pappen und die Abfuhrfahrzeuge Lesegeräte mitführen. Welches Problem genau soll damit gelöst werden?

Gibt es eine Müllmafia, bei der als harmlose Anwohner getarnte Verbrecher Tausende von Fake-Mülltonnen aufstellen, damit sie dann von den städtischen Betrieben geleert werden?

Hi @lproven,
nice! I'm using several #CGI​s #RFC3875 for personal (scaled to n=1) web applications - be it (ephemeral) #QRCode qr.mro.name, #GeoHash mro.name/g/u28br conversion, a #nodb guestbook codeberg.org/jugendhacktlab.qd, a personal #ActivityPub server @aSeppoToTry or the hacky video-office-hours reservation system mro.name/sprechstunde. Once there even was a #HaveIBeenPwnd proof of concept blog.mro.name/2022/08/pwned-di.
They're #rootless deployments running on #shared #hosting (except qrcodes and HaveIBeenPwnd).

qr.mro.nameQR Code Generator

Weil sich immer wieder Menschen darüber ärgern (zu recht, finde ich), dass #Wero erst bei wenigen Banken verfügbar ist: gestern den Eintritt zum #killesbergturm in #Stuttgart mit meiner #banking App bezahlt. Easy via #qrcode die Überweisungsfelder ausfüllen lassen, Betrag anpassen, fertig. Kein #paypal nötig, keine Gebühren. Einfacher und #Datensparsam|er geht's nicht. Nun werde ich mir also meinen "Bankkontakt" ebenfalls als QRCode vorbereiten für den nächsten #familyandfriends Austausch...