Name: テスラはすべてを監視している | WIRED Japan
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It has some of the most advanced navigation, autonomous driving, and safety features currently on the market, meaning it's full of equipment that can record and track you and your surroundings.

And can you trust the company to protect your sensitive information?

Today, we're doing a deep dive into Tesla's privacy issues.

There have been roughly 7 million Teslas sold, and each one of them is essentially a surveillance system on wheels.

The manual says there are Wi-Fi and GPS antennas in the passenger side mirror, which lets your car see where you are and get directions, and download software updates when it's parked in your garage.

Then, of course, there are all the cameras.

Every Tesla has a rear-view camera, a common feature which has actually been required in all new cars since 2018.

But Teslas also have either seven or eight other cameras, depending on the model.

Two mounted on the door pillars, two mounted on the front fenders, one inside the car, and either two or three mounted on the windshield above the rear-view mirror.

These cameras record around the car and feed that information to an onboard AI called Tesla Vision, which figures out things like whether you're staying in your lane, getting too close to other vehicles, or if you're approaching a red light.

With this 360 view, you're really recording a massive amount of information about everything the car drives by, license plates, people's faces, where people are on the street, basically public information, but it's a whole lot for a car to collect.

With all these sensors and cameras, your Tesla is awash in data, data that the company says your car needs to stay safe and get smarter.

And Tesla says that it keeps your data private, but is it really that simple?

Let's look at what happens to the most sensitive data that your Tesla collects.

Your Tesla is constantly using its GPS sensor to monitor where you go.

But according to Tesla, the company doesn't collect your location data with two exceptions.

The first exception is if you experience what the company calls a safety event, basically if you get into an accident.

If your car senses a crash, it'll send your location to Tesla.

The second is if you turn on location data sharing.

If you do that, your car will send location data to Tesla so it can evaluate how well its cars analyze and respond to road conditions.

Tesla promises that if you give it permission to collect this data, it'll make sure it's anonymized.

The company says that it does not link your location with your account or your identity, or keep a history of where you've been.

Tesla says that it only collects camera footage in limited circumstances.

For the exterior cameras, your car processes the data itself, unless you enable data sharing, in which case recordings of up to 30 seconds are shared with Tesla so it can evaluate how well its cars analyze and respond to road conditions.

Just like when you voluntarily share location data, Tesla says this information is anonymized.

According to Tesla, the only time your car will share your camera footage and link it to your identity is if you're in an accident.

Tesla's exterior cameras are also used for a feature called Sentry Mode, which basically lets you monitor your car's surroundings.

Or if your car detects a threat or unusual movement, you can watch a recording of the event.

Tesla promises that these features are secure.

The live view is protected with end-to-end encryption, meaning that even Tesla can't access it, and the recordings can only be saved on a USB drive.

Still, you're gonna wanna keep Sentry Mode in mind, and we'll explain more later.

As for the interior camera, the one that might be seeing more sensitive things, Tesla says that all its footage stays in the car unless you enable data sharing.

If you turn on that sharing and you get in an accident, your car will send Tesla short, anonymized clips.

It's the same as with the exterior cameras.

But what's different about the interior camera is if you don't turn on data sharing, the footage will never be sent to Tesla.

And if you're wondering about audio recordings generated by voice commands, like asking your car to turn on the AC, Tesla says those recordings stay on the car, too, unless you enable data sharing so it can improve the accuracy of your car's responses.

Just like with the cameras, Tesla says it doesn't capture continuous audio recordings.

The truth is, your privacy isn't as simple as the company makes it sound.

There are two big problems with Tesla's privacy claims.

Remember how Tesla claims that it anonymizes all the data so it can't be traced back to you?

Well, this anonymization isn't foolproof.

Each piece of data gets a temporary ID when it's sent to Tesla's servers.

But as IEE Spectrum explained, that temporary ID can stay active for days or even weeks.

And during that time, everything associated with that ID is clearly linked for everyone at Tesla to see.

That could include repeated visits to places that could clearly identify someone, like homes, schools, and office buildings.

As one Tesla owner who reverse-engineered the car's data collection system told IEE Spectrum, you could probably match everything to a single person if you wanted to.

And that leads to our second big problem, how much you can trust Tesla itself.

Tesla makes a lot of privacy guarantees, but when the Mozilla Foundation analyzed those promises, it wasn't very impressed.

Tesla does brag on its privacy pages about how they're committed to protecting your data privacy.

However, we worry that their actions too often show otherwise.

Mozilla criticized the policy's really vague language and lack of clarity on sharing with third parties.

And it said it was very worried about Tesla's privacy.

They even went as far as saying it's hard to trust them with their current track record.

Tesla's had some pretty serious privacy and security incidents over the past few years.

The biggest scandal involved Tesla employees spying on customers through the images and videos recorded by their car's cameras.

A car owner filing a potential class action suit after a Reuters report published Thursday said a small group of former employees described sharing sensitive customer videos internally.

According to Reuters, between 2019 and 2022, Tesla employees send each other highly invasive images and videos from their customers' cars.

This included footage of naked people and even a car hitting a child riding a bike.

Tesla employees could see inside homes and garages as well as the GPS locations of their recordings.

After the news broke in 2023, members of Congress took notice.

Senators Ed Markey and Richard Blumenthal wrote to Tesla CEO Elon Musk saying, the apparent willful disregard of Tesla customers' privacy is unacceptable and raises serious questions about Tesla's management practices.

Employee spying isn't the only reason to worry about how Tesla protects your privacy.

The company has also had trouble holding onto its data.

You have privacy questions because information is being gathered about you at all times, where you park, where you go, and it's being kept by the automotive industry without any real standards that are in place today.

In May 2023, a whistleblower gave a German newspaper 100 gigabytes of internal Tesla documents, including sensitive employee details, customers' bank information, and even production secrets.

A German data protection officer told The Guardian that the data breach was unprecedented in scale.

Now that we've covered what's in a Tesla and what to make of the company's privacy promises, let's go over what could go wrong if you own, rent, ride in, or just walk by one of these cars.

When it comes to Tesla's privacy risks, there's really three categories you have to consider.

Government surveillance, hacking, and good old-fashioned forgetfulness.

If you own a Tesla, the government can just search your car.

They may not even need a warrant to do so.

The Fourth Amendment's so-called automobile exception lets the police search a car without a warrant as long as they have probable cause to be suspicious of you.

And searching a Tesla can involve plugging your car into a computer and analyzing all the data it's collected about your travel history.

And here's something a lot of people don't know.

Even if you don't own a Tesla and you don't take a ride in one, you could still get caught in the company's de facto surveillance.

Remember that sentry mode feature we told you about earlier?

If you're walking down the street near a Tesla and a crime occurs nearby, you could get caught up in a police investigation without having anything to do with the incident.

Tesla's privacy policy contains vague and broad language about when the company will share car data with government authorities.

The company says that it will share information in response to subpoenas, but it also says it will turn over data if the company thinks the law requires it for purposes of security or other issues of public importance.

Apart from government investigations, there are also criminal gangs that like to hack companies, take huge piles of customer data, and charge ransoms not to post it online.

There's also the possibility that hackers could steal your data right off your car.

In early 2023, researchers at Pwn2Own Security Conference in Canada hacked into a Tesla Model 3 in less than two minutes.

They went from what's essentially an external component, the Bluetooth chip set, to systems deep within the vehicle.

In addition to police and hackers, there's a third privacy risk you should consider, yourself.

When people rent Teslas or trade in their used ones, they sometimes forget to erase their car's memory.

Researchers have found sensitive, unencrypted data sitting on Teslas purchased at scrapyards, where their previous owners probably thought it would never be accessed again.

Don't other cars have these problems, too?