Smart TVs take snapshots of what you watch multiple times per second
By Jeremy Hsu on September 24, 2024
Popular smart TV models made by Samsung and LG can take multiple snapshots of what you are watching every second – even when they are being used as external displays for your laptop or video game console.
Smart TV manufacturers use these frequent screenshots, as well as audio recordings, in their automatic content recognition systems, which track viewing habits in order to target people with specific advertising. But researchers showed this tracking by some of the world’s most popular smart TV brands – Samsung TVs can take screenshots every 500 milliseconds and LG TVs every 10 milliseconds – can occur when people least expect it.
“When a user connects their laptop via HDMI just to browse stuff on their laptop on a bigger screen by using the TV as a ‘dumb’ display, they are unsuspecting of their activity being screenshotted,” says Yash Vekaria at the University of California, Davis. Samsung and LG did not respond to a request for comment.
Vekaria and his colleagues connected smart TVs from Samsung and LG to their own computer server. Their server, which was equipped with software for analysing network traffic, acted as a middleman to see what visual snapshots or audio data the TVs were uploading.
They found the smart TVs did not appear to upload any screenshots or audio data when streaming from Netflix or other third-party apps, mirroring YouTube content streamed on a separate phone or laptop or when sitting idle. But the smart TVs did upload snapshots when showing broadcasts from the TV antenna or content from an HDMI-connected device.
The researchers also discovered country-specific differences when users streamed the free ad-supported TV channel provided by Samsung or LG platforms. Such user activities were uploaded when the TV was operating in the US but not in the UK.
By recording user activity even when it’s coming from connected laptops, smart TVs might capture sensitive data, says Vekaria. For example, it might record if people are browsing for baby products or other personal items.
Customers can opt out of such tracking for Samsung and LG TVs. But the process requires customers to either enable or disable between six and 11 different options in the TV settings.
“This is the sort of privacy-intrusive technology that should require people to opt into sharing their data with clear language explaining exactly what they’re agreeing to, not baked into initial setup agreements that people tend to speed through,” says Thorin Klosowski at the Electronic Frontier Foundation, a digital privacy non-profit based in California.
Yeah. My Samsung claws my firewall like a squirrel trapped in a box. It intensifies on certain hours of the day. I'm quite sure it also tries to send what devices are connected and what filenames are in attached memory sticks. Maybe also some media file checksums.
Something doesn't add up. How can a TV take 100 Screenshots of 4k content per second? No wifi has that bandwidth. No embedded processor has that capacity.
Do not connect your Smart TVs to network people, seriously. Just a bad idea. Use a media center PC or some other device that allows you to stream content, and make sure the TV itself is just a big monitor, nothing more.
Friendly reminder that gaming console monitors, computer monitors, projectors, dumb TVs, and commercial displays exist.
Yes, I could hack a smart TV to disable its networking capabilities. (Merely withholding my wifi password is not reliable.) But that would still be showing the manufacturers that I find spyware TVs acceptable, and supporting the production of those models.
Also, this would be a good time to pressure our legislators into criminalizing this nonsense.
The question now is, even if I don’t connect the TV to Internet, what TV brand should I buy? Currently I have LG, but no way I’m supporting that even without Internet connection.
The only sensible way to operate these TVs is with no internet connection. We run our entertainment through an AppleTV. If that ever starts showing ads at rest, I’ll replace it with a Mac mini or a NUC. Fuck these companies and their race to the bottom.
"They found the smart TVs did not appear to upload any screenshots or audio data when streaming from Netflix or other third-party apps, mirroring YouTube content streamed on a separate phone or laptop or when sitting idle. But the smart TVs did upload snapshots when showing broadcasts from the TV antenna or content from an HDMI-connected device."
The world is owned by a big club, and you're not in it.
Don't let your TV connect to the internet. I have mine on my wifi so I can control them using Home Assistant, but they're on an isolated VLAN with no internet access.
Edit: Of course, this only works if you use an external box for streaming, like an Nvidia Shield, Apple TV, Google Chromecast TV or whatever they call it now, etc.
I've said it before and I'll say it again, corporations treat you like a product. Whether you buy something from them or not. People are becoming the product that they sell.
I usually don't care very much until it starts to affect pricing for stuff based on some algorithms impression of how desperate you are. That algorithm started with travel (airlines, online booking fees for hotels and stuff) and has expanded.
If I need a new computer because mine isn't working, I don't really care that advertisers come at me with ads for their computer products. I need one, they want me to buy one, it's marketing. No worries.
If I need a new computer and suddenly all the prices for new systems goes up by $100 because it thinks I'm desperate enough to pay that, now I have a problem.
I still don't like them selling my data, and I'll do what I can to avoid it, but marketing is going to do marketing things.
i genuinely do not understand how TVs are so corrupt and greedy. You just display pixels, that's it! The entire purpose is to convert 1s and 0s to pretty color
“When a user connects their laptop via HDMI just to browse stuff on their laptop on a bigger screen by using the TV as a ‘dumb’ display, they are unsuspecting of their activity being screenshotted,”
But if you never connected the TV to the internet, it's not able to upload anything right?
That means they're violating HDCP (High definition copy protection)? Do streaming services such as Netflix and Disney, as well as movie studios such as Universal, know this?
I'd rather pay for pretty much all products up-front with money at purchase time rather than pay with my data.
Not gonna tell other people what to do, but for myself, whether it's my car or television or search engine or whatever, I'd rather just pay the bill rather than having the manufacturer or service provider go data-mining my data to figure out how they can make money from it.
I think that YouTube is a great service. YouTube Premium, though, is ad-free. What I want isn't no-ad stuff, but no-log policies. And there aren't a lot of manufacturers selling privacy. And it's hard to compare services and products based on that.
I'll go one more step. I don't want to go read through privacy policies and figure out what the latest clever loophole is. We had to deal with that kind of legal stuff back prior to standardization around a few open-source licenses, and it sucked.
And I don't want to deal with privacy policies that change and maybe don't do what I want.
What I want to do is look for a privacy certification, and let the certification agency deal with that.
Earlier this month I finally disconnected the wifi for my 7 year old Roku TV. I miss being able to turn it on w/ voice activation but I'll trade that in for my privacy
If you have a smart device, someone is doing this with it.
Best options to reduce their ability to access your devices: smart TV's - don't connect them to the internet unless you're updating the firmware. Use a streaming stick for streaming services, and then your privacy violations are minimized to the streaming stick that doesn't have a mic, or camera. Some controllers do have a mic, it's only a problem with who is making the tech.
Other smart devices like fridge, microwave, oven, washer, etc, just never connect them to the internet, they likely will work fine their entire life without a network connection.
Personal smart devices such as smart phones, remove google, and apple. Neither can truly be trusted, however apple does have a track record of keeping their snooping to themselves for what that's worth.
For robots, they will likely need a network connection, I recommend supporting home automation projects that will allow us to replace the OS on our robot vacuums, and food delivery devices with one that connects to a home based server that doesn't need an internet connection.
But never, ever, trust a smart device that is within hearing, seeing, or is touching you. It is a monitoring device, and it is being used that way by anyone with enough power.
I had to update my LG recently and it had to get approval for all sorts of weird shit. Oddly enough, it let me continue using just about everything even after I denied all the very invasive checkboxes. I guess even they can't deny use of your own tv if you reject the agreement lol
Jokes on them tho, they lack common understanding.
I watch a video about someone modding a shitbox and they think i can afford this new spyker sports car or any other 80k e car.
Obviously that shit is a swing and a miss. You want to give me advertising that suits me? Start by advertising stickers about cars because that's something i could afford...not something i would buy tho.
Hahah my friends made fun of me for buying some cheap as fuck "smart" TV instead of an expensive LG one like them, my TV can barely run a web browser, no chance in hell that things spying on me.