this post was submitted on 27 Jun 2025
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The Bluetooth chipset installed in popular models from major manufacturers is vulnerable. Hackers could use it to initiate calls and eavesdrop on devices.

Source

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[–] [email protected] 2 points 12 hours ago* (last edited 12 hours ago)

Imagine how much data could be collected from, say, a busy gym full of people with wireless headphones, or a hotel lobby

[–] [email protected] 64 points 2 days ago (2 children)

This really makes me hate that we don’t have headphone jack anymore

[–] [email protected] 13 points 1 day ago* (last edited 1 day ago) (8 children)

Ive always hated phones without the 3.5mm and won't stop even if all phone manufacturers remove it

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[–] [email protected] 5 points 2 days ago (1 children)

Not on flagships.

Sent from my Redmi Note 11S 5G.

[–] [email protected] 9 points 2 days ago (1 children)

You have a Redmi, you don't get an in here

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[–] [email protected] 93 points 2 days ago (3 children)

downvoted for that website's super illegal "pay us to not track you" policy

[–] [email protected] 41 points 2 days ago

Consent required for free use

I think that’s explicitly forbidden by the EU, and it’s a German domain.

[–] [email protected] 10 points 2 days ago

I hate that. I’m looking at you Healthline. I hate that it’s always so high in the results.

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[–] [email protected] 65 points 2 days ago (1 children)

Unchecked consumer-grade RF signals that are broadcast in every direction are insecure??

Color me shocked!

[–] [email protected] 10 points 2 days ago

Well, if these devices required any sort of authentication (e.g. pairing) to free access to their ram and flash, we wouldn't be having this particular story..

[–] [email protected] 80 points 2 days ago (4 children)

The site wants to share info with advertisers. I found this to be refreshingly honest.

We and our up to 185 partners use cookies and tracking technologies. Some cookies and data processing are technically necessary, others help us to improve our offer and operate it economically...

Anyway, can we get an archive link?

[–] [email protected] 21 points 2 days ago

The website also wants to drm fingerprint you

[–] [email protected] 79 points 2 days ago (1 children)

It’s strange to think about how complicit the public has become with this. You mean to tell me that 185 separate connections to other companies are required for me to… read an article?

[–] [email protected] 24 points 2 days ago* (last edited 2 days ago)

Well yeah, they have to hoard your advertising data somehow. How else can they advertise things that you don't need to buy?

[–] [email protected] 24 points 2 days ago (1 children)

You can get/make your own archive link by going to archive.ph and entering the article's URL.

Here's the link for this one: https://archive.ph/wUAQn

[–] [email protected] 2 points 1 day ago
[–] [email protected] 16 points 2 days ago

Instead of hacking Bluetooth, sounds more effective to be an "advertising partner".

[–] [email protected] 132 points 2 days ago* (last edited 2 days ago) (9 children)

And this is why people wanted headphone jacks... and also why corporations didn't want them.

[–] [email protected] 102 points 2 days ago* (last edited 2 days ago) (9 children)

I mean, there were legitimate technical issues with the standard, especially on smartphones, which is where they really got pushed out. Most other devices do have headphones jacks. If I get a laptop, it's probably got a headphones jack. Radios will have headphones jacks. Get a mixer, it's got a headphones jack. I don't think that the standard is going to vanish anytime soon in general.

I like headphones jacks. I have a ton of 1/8" and 1/4" devices and headphones that I happily use. But they weren't doing it for no reason.

  • From what I've read, the big, driving one that drove them out on smartphones was that the jack just takes up a lot more physical space in the phone than USB-C or Bluetooth. I'd rather just have a thicker phone, but a lot of people wouldn't, and if you're going all over the phone trying to figure out what to eject to buy more space, that's gonna be a big target. For people who do want a jack on smartphones, which invariably have USB-C, you can get a similar effect to having a headphones jack by just leaving a small USB-C audio interface with a headphones jack on the end of your headphones (one with a passthrough USB-C port if you also want to use the USB-C port for charging).

  • A second issue was that the standard didn't have a way to provide power (there was a now-dead extension from many years back, IIRC for MD players, that let a small amount of power be provided with an extra ring). That didn't matter for a long time, as long as your device could put out a strong enough signal to drive headphones of whatever impedance you had. But ANC has started to become popular now, and you need power for ANC. This is really the first time I think that there's a solid reason to want to power headphones.

  • The connection got shorted when plugging things in and out, which could result in loud sound on the membrane.

  • USB-C is designed so that the springy tensioning stuff that's there to keep the connection solid is on the (cheap, easy to replace) cord rather than the (expensive, hard to replace) device; I understand from past reading that this was a major reason that micro-USB replaced mini-USB. Instead of your device wearing out, the cord wears out. Not as much of an issue for headphones as mini-USB, but I think that it's probably fair to say that it's desirable to have the tensioning on the cord side.

  • On USB-C, the right part breaks. One irritation I have with USB-C is that it is...kind of flimsy. Like, it doesn't require that much force pushing on a plug sideways to damage a plug. However


and I don't know if this was a design goal for USB-C, though I suspect it was


my experience has been that if that happens, it's the plug on the (cheap, easy to replace) cord that gets damaged, not the device. I have a television with a headphones jack that I destroyed by tripping over a headphones cord once, because the headphones jack was nice and durable and let me tear components inside the television off. I've damaged several USB-C cables, but I've never damaged the device they're connected to while doing so.

On an interesting note, the standard is extremely old, probably one of the oldest data standards in general use today; the 1/4" mono standard was from phone switchboards in the 1800s.

EDIT: Also, one other perk of using USB-C instead of a built-in headphones jack on a smartphone is that if the DAC on your phone sucks, going the USB-C-audio-interface route means that you can use a different DAC. Can't really change the internal DAC. I don't know about other people, but last phone I had that did have an audio jack would let through a "wub wub wub" sound when I was charging it on USB off my car's 12V cigarette lighter adapter


dirty power, but USB power is often really dirty. Was really obnoxious when feeding my car's stereo via its AUX port. That's very much avoidable for the manufacturer by putting some filtering on the DAC's power supply, maybe needs a capacitor on the thing, but the phone manufacturer didn't do it, maybe to save space or money. That's not something that I can go fix. I eventually worked around it by getting a battery-powered Bluetooth receiver that had a 1/8" headphones jack, cutting the phone's DAC out of the equation. The phone's internal DAC worked fine when the phone wasn't charging, but I wanted to have the phone plugged in for (battery hungry) navigation stuff when I was driving.

[–] [email protected] 3 points 15 hours ago (2 children)
[–] [email protected] 2 points 9 hours ago* (last edited 8 hours ago)

As @[email protected] said.

https://en.wikipedia.org/wiki/Active_noise_control

Historically, if you were in a noisy environment, you could get closed-back, circumaural headphones


headphones that fit around your ears and had a lot of sound-absorption padding


to help soak up the sound. I still use decent non-ANC circumaural headphones at home.

There are also some people who are more-willing to tolerate discomfort than I am who get in-ear buds, which block noise in their ear canal, and on top of that, fit ear protectors intended for industrial use, like 3M X5 Peltor ear protectors, which have even more passive sound absorption stuff than current circumaural headphones do, and are even larger.

That sort of thing works well on higher frequency sound, but not as well on low-frequency stuff, like engine noise, large fans, stuff like that.

ANC basically has microphones in your headphones, picks up on what sounds are showing up at your ear, and then tries to compute and play back a sound that produces destructive interference at your ear. That is, if you look at the sound waves, where the environmental sound is low pressure, it plays back high pressure signal, and when the environmental sound is high pressure, it plays back low pressure signal. It's not perfect, or it could make environmental sound totally inaudible. But high-end ANC headphones are pretty impressive these days. I have a pair of Sennheiser Momentum 4 headphones


good, though not the best ANC out there in 2025, and I don't personally recommend these for other reasons


and when they kick on, the headphones are designed to have the ANC fade in; same thing happens in reverse, fades out when you flip the ANC off. It sounds almost as if fans and the like around you are powering up and down when that happens, very eerie if you've never experienced it before. Even the sounds that it doesn't do so well on, like people talking, it significantly reduces in volume.

And ANC does best with the other side of the spectrum, the side that passive sound absorption doesn't


the low-frequency stuff, especially regular sounds like fans. So having both a lot of passive sound absorption and ANC on a given pair of headphones let the two work well together.

People often use cell phones in noisy environments, with a lot of people around, and ANC makes it a lot easier to hear music or whatever without background sound interfering. I think that it's very likely that people will, long term, mostly wind up using headphones with ANC (short of moving to something more elaborate like a direct brain interface or something). It's not really all that important if you're in a quiet environment, and I don't bother using ANC headphones on my desktop at home. But if you're in random environments


waiting a grocery store line, in a restaurant with music playing over the restaurant's speakers, on an airplane with the drone of the airplane engines, whatever


it really helps to reduce that background sound. ANC isn't that new. I think that I remember it mostly being billed as useful for airplane engine noise back when, which they're a good fit for. But it's gotten considerably better over the years. For me, in 2025, good ANC is something that I really want to have for smartphone use.

The problem is that in order to do ANC, you need at least a microphone, preferably an array, and somewhere you need to have a model of the sound transmission through the headphones and be running signal processing on the input sound to generate that output sound. In theory, you could do it on an attached computer if you had a fast data interface, but in practice, ANC-capable headphones are sold as self-contained units that handle all that themselves. So you gotta power the little computer in the headphones. That means that you probably have batteries and at least for full size headphones (rather than earbuds) you might as well stick a USB interface on them to charge them, even if the user is using Bluetooth for wireless connectivity. And if you've done that, it isn't much more circuitry to just let the headphones act as USB headphones, so in general, ANC headphones tend to also be USB-capable. My Momentum 4 headphones have all of Bluetooth, USB-C, and a traditional headphones interface, but...I just haven't really wound up using the headphones interface if I have the other options available on a given device. Might be convenient if I were using some device that only had headphones output. shrugs

[–] [email protected] 6 points 14 hours ago

Active noise cancelling - noise cancelling that doesn't just rely on making a seal between your ears and the earbuds/headphones.

[–] [email protected] 48 points 2 days ago (1 children)

I’d rather just have a thicker phone, but a lot of people wouldn’t

I think this is a case where the corporations were telling people what they wanted rather than people really asking for thinner phones. Same thing with bezels, I don't know anyone who asked for the screen to go all the way to the edge (or worse, curve around onto the sides). Apple and Samsung said 'this is what people want' when in fact it was what their marketing department wanted because they wouldn't be able to sell the iGalaxy N+1 if it was slightly thicker or heavier than the iGalaxy N.

[–] [email protected] 5 points 12 hours ago (2 children)

Fwiw, I want as much screen as possible. Why waste space?

[–] [email protected] 1 points 2 hours ago

Wouldn’t it be nice to have all that screen space and a headphone jack and higher capacity battery tho? You can have all that and more

[–] [email protected] 18 points 2 days ago

Honestly I'd be happy with a phone sporting two USB C ports, one centered and one off to the side where the headphone jack used to be, both fully functional.

[–] [email protected] 23 points 2 days ago (5 children)

That's great and all but I'm not switching to Bluetooth headphones and I'm definitely not going to fiddle around with dongles every time I switch between listening on my phone and my PC. Phones are gigantic anyways; let my have my headphone jack. I don't think it's a coincidence that all these smartphone manufacturers that ditched the old standard will happily sell you shiny expensive disposable wireless earbuds.

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[–] [email protected] 52 points 2 days ago

Wired headphones stay winning

[–] [email protected] 26 points 2 days ago (6 children)

Hah, jokes on them, I managed to fuck my earbuds' microphones so they're useless now.

[–] [email protected] 23 points 2 days ago

You did WHAT with them?

They don't GO there....

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[–] [email protected] 23 points 2 days ago (2 children)

So glad I use wired earbuds and refused to buy a phone that didn't support them.

[–] [email protected] 10 points 2 days ago (1 children)

LOL at the big debate I read just yesterday about how better wireless headphones are, and how useless jacks on phones are nowadays...

[–] [email protected] 13 points 2 days ago (8 children)

Same. I can't find any Bluetooth headphones whose batteries don't die in 4 or 5 months anyway. Meanwhile my Moondrop wired headphones have been going strong for almost 3 years.

[–] [email protected] 4 points 1 day ago

Got a a pair of sennheisers old enough to vote

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[–] [email protected] 25 points 2 days ago (4 children)

Sounds like the attack scenario is very sophisticated and targeted, and only works within the range of Bluetooth low energy (BLE) connectivity, so 10-15 meters under best circumstances. At that point they might as well eavesdrop on my calls in person.

[–] [email protected] 14 points 2 days ago* (last edited 2 days ago)

I think BLE is only required for the initial compromise (extracting the pairing key). After that the attack can be performed over classic BT, and can impersonate either part (headphones or phone) to the other.
It's still very targeted and sophisticated, so no reason to panic unless you have reasons to think someone with the resources could target you.
Regarding the attacks, they go way beyond eavesdropping calls, since BT headphones usually have access to contacts and smart assistants, that you can use to extract a lot more information

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[–] [email protected] 42 points 2 days ago* (last edited 2 days ago) (1 children)

There's lots of money to be made by inserting a hardware back door in your product then later disclosing it as an unfixable vulnerability and force your customers to buy new hardware which has the same but different backdoor. Repeat.

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[–] [email protected] 26 points 2 days ago (4 children)

Even if these attacks seem frightening on paper, the ERNW researchers are reassuring: many conditions must be met to carry out an eavesdropping attack. First and foremost, the attacker(s) must be within range of the Bluetooth short-range radio; an attack via the Internet is not possible. They must also carry out several technical steps without attracting attention. And they must have a reason to eavesdrop on the Bluetooth connection, which, according to the discoverers, is only conceivable for a few target people. For example, celebrities, journalists or diplomats, but also political dissidents and employees in security-critical companies are possible targets.

I guess they didn’t point this out because it’s kind of obvious, but it sounds like they also have to actually be on to be exploited. So it’s not going to turn on and start listening to you at least. Definitely concerning, but I’m still gonna be listening to my audio books and podcasts with my wireless headphones.

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