229

I didn't know my city was cool enough to put signal flyers.

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[-] Baguette@lemm.ee 145 points 5 months ago

Cool but I wouldnt exactly trust a random qr code

[-] my_hat_stinks@programming.dev 90 points 5 months ago

QR codes essentially just encode text, as long as you're using a sensible QR code reader and check any URLs before opening them there's minimal risk to scanning a QR code.

[-] TaviRider@reddthat.com 71 points 5 months ago

I still wouldn’t trust it because of homograph attacks.

[-] hashferret@lemmy.world 30 points 5 months ago

Respectfully I think this is a minimal attack vector in this case due to the limited character set of urls. But thanks for the callout, I didn't know there was a name for this sort of attack.

[-] Lichtblitz@discuss.tchncs.de 22 points 5 months ago* (last edited 5 months ago)

Modern browsers happily show you the actual characters, while sending their encoded entities to the server. So, from a user perspective there is no ASCII limitation. Case in point: söhne.at (just some random website, I have no idea what they are or if they are legitimate)

[-] gila@lemm.ee 6 points 5 months ago

They'd still resolve via DNS to an address in ASCII though, right? Wouldn't that only be an issue if ICANN didn't have a monopoly on DNS registration? i.e what we already depend on for a semblance of convenience without totally compromising opsec

[-] qaz@lemmy.world 9 points 5 months ago* (last edited 5 months ago)

It utilizes punycode under the hood. The actual DNS entries still use ASCII.

[-] qaz@lemmy.world 13 points 5 months ago

Punycode enables you to encode any Unicode character as ASCII. Almost all browsers support this.

[-] 4stringscooter@lemmy.ml 9 points 5 months ago

Or xss/sqli/etc attacks on vulnerable sites that don't sanitize url query parameters

[-] 4stringscooter@lemmy.ml 14 points 5 months ago

Or maybe a fraudulent signal app.

I mean, generally speaking, just don't click on random links. This is a random link. Qr codes are valuable but we're conditioning society to just be cool with clicking on random shit without putting much thought into it.

[-] captain_aggravated@sh.itjust.works 6 points 5 months ago* (last edited 5 months ago)

Oh is that like bankofarnerica.com or whatever, hoping the r and n look enough like an m for at least some people to click?

edit: under absolutely no circumstances click on the above link. Your bank will be robbed and your foreskin soldered shut. To very don't.

[-] InternetCitizen2@lemmy.world 5 points 5 months ago

That's fair

[-] bloubz@lemmygrad.ml 7 points 5 months ago

Well not really, it's a good way to do a IDN homograph attack

[-] jqubed@lemmy.world 7 points 5 months ago

I may have in the past put lyrics from “Never Gonna You Up” or links to the music video on YouTube in QR codes I printed on blank business cards and left them in public places around town.

[-] possiblylinux127@lemmy.zip 2 points 5 months ago

You should a tracking link that has been shortened

[-] Successful_Try543@feddit.de 6 points 5 months ago

You could still enter the URL manually if you are concerned.

[-] gencha@lemm.ee 30 points 5 months ago

That's wanderful!

[-] NegativeLookBehind@lemmy.world 26 points 5 months ago* (last edited 5 months ago)

Surely it's legit

EDIT: It actually is

[-] CrayonMaster@midwest.social 13 points 5 months ago

What is it? Just signal's webapge? I'm a coward.

[-] NegativeLookBehind@lemmy.world 21 points 5 months ago

Yup. I cropped the QR code and checked it with an online reader, and it’s literally signal.org

[-] RedditWanderer@lemmy.world 16 points 5 months ago

I wander what it means

[-] possiblylinux127@lemmy.zip 4 points 5 months ago* (last edited 5 months ago)

It probably it is a person putting up flyers

[-] InternetCitizen2@lemmy.world 3 points 5 months ago

I guess I mean someone in my city not the government.

this post was submitted on 18 May 2024
229 points (93.5% liked)

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