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.
THIS is piracy. Along with all the other personal data selling.
LOL “if it was opt-in, no one would do it!”
no fucking shit. there is nothing worth watching that i would buy a smart tv for
One issue that has come up recently in discussions on here is that it’s hard to get dumb TVs or computer monitors in large format in 2024.
Not impossible, but surprisingly difficult. I went looking for a large computer monitor for some user who wanted a large one. I eventually found an older one on Amazon still for sale, but it’s not that easy to get large computer monitors, which I think is part of what drives people to use smart TVs as computer monitors.
You can get projectors, but that’s not what everyone’s after.
A smart tv without an internet connection is usually close enough to a dumb TV. It’s not like your TV needs regular security updates so leaving it off your home network is fine.
I do not know how true it is, but I’ve heard that some of them will create a mesh network if your neighbor has the same brand and it’s connected to the internet.
I’ve always meant to look into it but I have big dumb TVs that work for now.
Open the tv and rip out the antenna. Y’all already forgot the classic secret agent trope of checking the hotel room for bugs? Now we all get to play that game!
Nowadays the antenna is often embedded into the pcb, so no way to rip it out other than scraping off the traces
Google part numbers (if they aren’t scratched off/lasered off/ epoxied). Once you’ve found the ethernet controller, you can short out the pins, or yeet it off the board.
“mechanical malfunction, please contact support” as a big red warning that you cannot dismiss
if it was opt-in, no one would do it!
Which should be telling them that not only does no one want it, but maybe just maybe we already paid for your fucking TV. Either raise the price or stop being so fucking goddamn greedy to the point that you force us to make the government force you to stop.
Of course the bought and paid for US government won’t, but hopefully EU governments will.
These are criminal violations of the Computer Fraud and Abuse Act. Jail the motherfucking felon CEOs!
So LG and Samsung likely have tons of illegal (copyright) content on their servers then? Ownership is 9/10ths of the law so they say. That’s gotta be exabytes
But the supreme court ruled to save the conviction for the election.
Worse than that, they
havegave free speech to corporations, and now that includes doing nearly anything involving communication or spending money.I’ll believe corporations are people the moment Texas executes ones.
Imagine the amount of bandwidth and energy saved, if they didn’t do any of this bullshit.
They are essentially using someone else’s money to get themselves more money. Fuck these people!
I complained about shit like this more than a decade ago and everyone just laughed and said ‘Oh they’ll never do anything like that’
You get what you fucking deserve
And the rest of us get what that guy deserves too!
Yep, every one of you
For one people don’t actually have much choice if you want to buy a television. Most TVs are smart TVs now, so you are pretending we have a choice here. I have managed to avoid buying one, but only because I don’t buy televisions.
Would you like it if I blamed you for getting spied on by Microsoft because you use Windows? Switching to Linux is easier than finding a TV that isn’t smart and actually has decent specifications.
Removed by mod
Would be nice if we could have some technological privacy laws written in this century.
We need all the boomers in Capitol Senior Care Home to vacate first
You have it backwards. You have to EVICT them.
They already tried Jan 6 ! The old geezers won’t go.
They already tried Jan 6 !
Nope. Those bootlickers were on the side of the corporate/billionaire enshitifiers, trying to make the enshitification MUCH worse.
awful ethics aside what a disgusting waste of processing power. software already barely runs
now you know why
Screenshotting every 500ms is insane.
Even a 0.30$ ch32v003 could handle this tiny amount of data. It’s not a resource limit
“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?
Correct
For example, it might record if people are browsing for baby products or other personal items.
Don’t mind baby products and dildos or whatever.
They could see bank activity and even login credentials when someone is temporarily displaying their own passwords.
This basically ignores all security measures regarding everything. Sensitive communication, company secrets and so on.
That’s fucking seriously huge. What the fuck?!
I’m so tired
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.
wtf?
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.
Do your firewall rules allow you to block your tv’s telemetry, while allowing you to still use the internet on it? If so, would you mind sharing how you did it?
You should look into PiHole, if you’re half-savvy with computers. They should be able to block all the destinations smart TVs are trying to connect to
Very easy to circumvent
Time should have stopped to 1999.
Never connect your tv to the internet.
Okay. So how do we turn it off!? I’ve read nothing in my Samsung manuals about this “feature” and here no instructions for turning it off.
Just don’t hook it up to your wifi. Don’t use any of its included apps. If you must stream get a separate device to do it.
This is the correct answer. I actually disabled LG’s version of it when I first heard about it. A few months later it had been reactivated in an update, so I just factory reset it and connected an old laptop.
You can’t trust anyone — corporation or government — to protect or respect your privacy. Ever. If it’s not open source and E2EE, assume that a criminal is going to view and process it for profit.
No it is not the correct answer! The correct answer is to put the CEOs who perpetrate this criminal shit in prison for millions of counts of hacking and stalking!
Merely shrugging and implementing a technological workaround is not an appropriate response to someone perpetrating a felony against you!
The downvotes are because your “solution” is not based in the reality that the rest of us live in.
There are no downvotes, so I’m not sure what point you think you’re making.
Question, what separate device is best and most privacy focused? I just imagine getting a firestick, google Chromecast, etc would also give away data?
There are some open-source systems for media PCs.
Kodi seems to me to be popular, though I don’t use a media PC myself.
You’ll need to have the technical knowledge to install it yourself.
Again your media PC (or HTPC) is still connected to a smart TV. And the problem is with the TV recording HDMI data. In fact, if you read correctly, the Smart TV does no record data from the built-in apps like Netflix.
I love my Samsung because I never gave it the wifi credentials.
Dumb TV is better. My PS5 can do everything I want and I already give all my metrics to them just playing it
Hello 8th person I’ve had to explain this to: they still connect to stuff. Even if you disable WiFi on the Samsung TV they can mesh network with other TVs in your neighborhood or with your phone (Samsung is particularly pushy about wanting you to install and connect your phone).
