Driverless Cars Could Be Hacked With Stickers on Traffic Signs, Study Suggests

Justin Sullivan/Getty Image
Justin Sullivan/Getty Image

As driverless cars inch toward becoming regular sights on our streets, experts have started to warn that the connected cars could be vulnerable to hackers who can take control of the vehicles from a distance. Though most of these warnings are related to hacking into the internet-connected computer on board, there’s an analog way to disrupt the workings of a driverless car, too, as Autoblog reports. Researchers from across the U.S. recently figured out how to trick a driverless car with a set of stickers, as they detail in a paper posted on arXiv.org.

They examined how fiddling with the appearance of stop signs could redirect a driverless car, tricking its sensors and cameras into thinking that a stop sign is actually a speed limit sign for a 45 mile-per-hour zone, for instance.

They found that by creating a mask to cover the sign that looks almost identical to the sign itself (so a human wouldn’t necessarily notice the difference), they could fool a road-sign classifier like those used by driverless cars into misreading the sign 100 percent of the time.

Five different views of a stop sign with black and white block-shaped stickers seen from various angles and distances.

Evtimov et al., arXiv.org

In a test of a right-turn sign, a mask that filled in the arrow on the sign resulted in a 100 percent misclassification rate. In two thirds of the trials, the right-turn was misclassified as a stop sign, and in one third, it was misclassified as an added lane sign. Graffiti-like stickers that read “love” and “hate” confused the classifier into reading a stop sign as a speed limit sign the majority of the time, as did an abstract design where just a few block-shaped stickers were placed over the sign.

“We hypothesize that given the similar appearance of warning signs, small perturbations are sufficient to confuse the classifier,” they write.

The study suggests that hackers wouldn’t need much equipment to wreak havoc on a driverless car. If they knew the algorithm of the car’s visual system, they would just need a printer or some stickers to fool the car.

However, the attacks could be foiled if the cars have fail-safes like multiple sensors and take context (like whether the car is driving in a city or on a highway) into account while reading signs, as Autoblog notes.

[h/t Autoblog]

6 Fun Backgrounds to Use on Your Next Video Call

You might be stuck in the living room, but it doesn't have to look like it.
You might be stuck in the living room, but it doesn't have to look like it.
Ridofranz/iStock via Getty Images

If you’re struggling to find a perfectly decorated wall in your house to serve as the backdrop for your video calls with friends, family, and coworkers, we have good news: Video conferencing platform Zoom lets you customize your very own virtual background.

To do it, log into your Zoom account, go to “Settings” on the left side of your screen, and choose the "Meeting" tab. Scroll down to the “In Meeting (Advanced)” section, and then scroll down farther to make sure the “Virtual background” option is enabled. After that, open the Zoom application on your desktop, click on the “Settings” wheel in the upper right corner, and go to “Virtual Background.” There are a few automatic options, but you can choose your own image from your computer files by clicking on the plus-sign icon.

Now, the only thing left to do is decide which image will best set the tone for your next video call. From the New York Public Library’s Rose Reading Room to Schitt’s Creek’s Rosebud Motel, here are six of our favorites.

1. The Rosebud Motel lobby from Schitt’s Creek

schitt's creek rose motel lobby
It's not the Ritz-Carlton.
CBC

You can imagine that David is just out of frame, doing his best to carry on a silent—albeit with lots of expressive gesturing—conversation with Stevie at the front desk. (More Schitt's Creek backgrounds here.)

2. Carl and Ellie’s house from Up

carl and ellie's house from up
Balloons not included.
Walt Disney Pictures

If you’re hoping to create a calming atmosphere, look no further than the cozy little sitting room where Carl and Ellie grew old together in 2009's Up. (More Pixar backgrounds here.)

3. The attic study from Knives Out

knives out attic study
Nothing bad has ever happened here.
Lionsgate

If your own study isn’t quite teeming with intriguing souvenirs and leather-bound volumes, feel free to borrow this one from the mansion in 2019’s Knives Out. (More Knives Out backgrounds here.)

4. The USS Enterprise from Star Trek

star trek's uss enterprise bridge
A great way to get your coworkers to fess up to being huge Trekkies.
TrekCore.com, Twitter

Blame your spotty internet connection on the fact that you’re traveling through the galaxy at the speed of light with this background from the bridge of Star Trek’s USS Enterprise. (More Star Trek backgrounds here.)

5. The New York Public Library’s Rose Reading Room

new york public library reading room
You reserve the right to shush any coworkers who forgot to mute themselves.
New York Public Library

Bibliophiles who can’t make it to the library can still pay a virtual visit to the sumptuous Rose Main Reading Room at the New York Public Library’s iconic Fifth Avenue location. (More New York Public Library backgrounds here.)

6. The Werk Room from RuPaul’s Drag Race

rupaul's drag race werk room
Sashay away from the screen if you're taking a bathroom break during the call.
VH1

Dazzle your coworkers by calling in from the vibrant room where all the magic—and most of the drama—happens on RuPaul’s Drag Race. If you happen to be decked out in an ensemble made entirely of things you found at the Dollar Store, even better. (More RuPaul's Drag Race backgrounds here.)

Turn Your Favorite Photos Into Works of Art With Google’s Art App

Edvard Munch's "The Scream"
Edvard Munch's "The Scream"
Edvard Munch, Wikimedia Commons // Public Domain

If your local art museum is closed, a new app from Google Arts & Culture will make the photos in your camera roll worthy of gallery consideration. As Gizmodo reports, the Art Transfer feature uses artificial intelligence to reimagine any image you upload in the style of a famous artist.

If you've already downloaded Arts & Culture for Android or iOS, hit the camera icon at the bottom of the app and select Art Transfer. From here, you can either snap a photo or choose an existing picture saved on your phone. Google then gives you a variety of art styles to choose from. You can transform your cat into Edvard Munch's The Scream, for example, or turn your brunch pic from last month into a piece of Yayoi Kusama pop art.

The feature doesn't just apply filters; it uses machine learning to edit the colors, textures, and even shapes in the image you upload.

Dog image inspired by Man from Naples.
Michele Debczak/Mental Floss, Google Arts & Culture

Pizza picture inspired by The Scream.
Michele Debczak/Mental Floss, Google Arts & Culture

Two years ago, Google Arts & Culture rolled out a similar feature that matched users' selfies to their art lookalikes. The difference with this one is that instead of showing you existing art, it creates an entirely new image by combining your photo with a famous artwork.

You can download Arts & Culture for free today from the App Store or Google Play. After having fun with the new feature, you can use the app to virtually explore landmarks, museums, and other cultural institutions from the comfort of your home.

[h/t Gizmodo]

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