QR Codes are on everything from restaurant menus to paid parking lot signs. And we scan them without hesitation. But should we?
“They used them as just a quick way to sense, you know, what, what was moving through the factory,” said Rocky Slavin, Assistant Professor of Computer Science at UTSA.Bar codes also contain information, but usually just letters and numbers.
Let’s say the QR code is created or generated, most often using an app, on a Monday, but on Wednesday that URL is updated with new pictures and video.Each QR code usually has three big squares within a larger square.“The rest of the data can actually be used in that QR code to generate what was missing, which is really neat,” Slavin said. “Barcodes can’t do that.”It doesn’t tell you much.“Not to sound as an alarmist. most QR codes can be trusted,” Wall said.
“It is remarkably simple for me or people in my industry to create our own QR code that sends you somewhere else and to create a website, a cloned website, that looks exactly like the other website,” Wall said. “And then we could steal your credentials.” Wall said there’s also a risk when simply clicking a link from a QR code, whether you enter private info or not.“If you’re using a up-to-date device, an up-to-date iPhone an up-todate Android phone -- the risk is really low, really low,” Wall said. “Most of our phones have built in protections that prevents most of those attacks.”They’re a convenient way to access a lot of information quickly.
United Kingdom Latest News, United Kingdom Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
The (sometimes haunted) stories behind local historic hotels: KSAT ExplainsFrom tales of Little Jimmy and the Lavender Lady to presidential bullet holes in a bar, these are the stories behind some of San Antonio’s most historic hotels.
Read more »
Why KSAT is publishing the majority of City of Uvalde’s footage, audio from Robb Elementary shootingKSAT has made the editorial decision to publish the majority of the documentation released
Read more »
KSAT reporter Daniela Ibarra joins station's investigative teamJust one year after joining KSAT-TV as a general assignment reporter, Daniela Ibarra is starting a new position at the station.
Read more »
Boerne and Pieper kick off the KSAT Pigskin Classic, huddle up to feed people in needThe final score of the football game will take a backseat during the Peanut Butter Bowl
Read more »
KSAT’s RJ Marquez reflects on journey from overnight producer to GMSA co-anchorI started at KSAT in the summer of 2010 as the overnight digital producer and writer for our morning newscasts. Little did I know that more than a decade later, I would be in a position to anchor GMSA.
Read more »
KSAT court reporter Erica Hernandez featured in true crime show ‘Snapped’KSAT court reporter Erica Hernandez was featured in the Oxygen true crime show “Snapped” to discuss the trial of Sasha Skare, who killed a San Antonio rapper related to Beyonce in 2021.
Read more »