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InvisibleCall-Me-Bob
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Tor users at risk of being unmasked by ultrasound tracking
    #24029622 - 01/22/17 03:33 AM (7 years, 8 days ago)

https://nakedsecurity.sophos.com/2017/01/13/tor-users-at-risk-of-being-unmasked-by-ultrasound-tracking/

Tor users at risk of being unmasked by ultrasound tracking

A new type of attack should make Tor users – and countless dogs around the world – prick up their ears. The attack, revealed at BlackHat Europe in November and at the 33rd Chaos Computer Congress the following month, uses ultrasounds to track users, even if they are communicating over anonymous networks.

The attack uses a technique called ultrasound cross-device tracking (uXDT), which made its way into advertising circles as early as 2012. Marketing companies running uXDT campaigns will play an ultrasonic sound, inaudible to the human ear, in a TV or radio ad, or even in an ad delivered via a computer browser.

Although the user won’t hear it, other devices such as smartphones using uXDT-enabled apps will be listening. When the app hears the signal, it will ping the advertising network with details about itself. What details? Anything it asks for the phone for, such as its IP address, geolocation Coleman’s, telephone number and IMEI (SIM card) code.

That’s creepy enough in marketing. Now, advertisers can tell what TV or radio ads you’ve been listening to, matching them with the universe of other information they have about you from your web searches, social media activity and emails.

Marketers could perhaps even tell what physical locations you visited, because uXDT is also used for proximity marketing, in which beacons are played in locations such as stores, for example.

Tor blimey
It gets creepier still when you see the demo from Vasilios Mavroudis, one of a six-person team researching this topic. He worked out how to use the technique to unmask Tor users. Here’s the full video. The money shot where he pwns the anonymous user begins at 19:05.


How did he do it? An adversary creates a campaign with a uXDT service provider and obtains an ultrasonic signal file, known as a beacon. They then create an site on the Tor network that secretly plays the beacon. When the victim visits the site anonymously using the Tor browser, a uXTD-enabled app running on their nearby smartphone picks up the signal and phones home to the uXTD service provider, which then relays all its details to the adversary. Suddenly, the Tor user isn’t anonymous any more.

This is a significant threat to online anonymity. The attack could unmask more than just Tor users. Any other anonymous network user could be targeted by luring them to a site with a beacon on it – or by using a cross-site scripting attack to play Javascript on someone else’s site.

Attack scenarios
The beacon could be injected into more than just a website, so how might law enforcement use it? Playing it in online videos would enable authorities to find out who was listening to them, where, and when. BleepingComputer points out that authorities could use this to track people watching child sex abuse content rather than simply infecting them with malware via compromised sites, as it has done in the past.

Companies might also have a need for this technology outside marketing. Presumably, tailored files on peer-to-peer networks could also track folks illegally downloading copyrighted movies.

State actors could also use the tech to track dissidents in oppressed countries. Simply delivering a voicemail played on a speakerphone might be enough to give away a person’s location and identity. Presumably, playing such signals over loudspeakers would make it relatively easy to identify large numbers of people at public gatherings, too.

Bad apps
Of course, all this relies on you having the listening software on your phone in the first place, but that might not be as difficult as you’d think. It is typically provided as a development framework, meaning that the code finds its way into third-party applications.

The only clue that you’re running the software might be when the app containing it asks for access to your microphone. But then, lots of apps such as voice messaging or music discovery apps legitimately use microphones. And let’s face it, many users simply don’t pay attention to what they’re giving up when all they want to do is install the latest dodgy ripoff of Crossy Road or Flappy Bird.

This is not the first time that people have proposed evil audio tinkering with smart phones. French hackers demonstrated how to control Siri using nearby radio waves two years ago, but a favourite is still the use of human-audible video to manipulate voice activated assistants on phones and tablets, which could be used to open websites or call numbers. We’re still waiting for infected YouTube videos to appear, or for someone to get enough live broadcast airtime to wreak havoc.

It all goes to show that however secure you think you are, there’s always another step. Zuck had it right when he taped over his computer’s webcam, but perhaps he just didn’t go far enough.


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Offlinemusiclover420
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: Call-Me-Bob]
    #24029720 - 01/22/17 05:54 AM (7 years, 8 days ago)

:strokebeard:


--------------------
Don't worry about me, I've got all that I need. And I'm singing my song to the sky

You know how it feels, With the breeze of the sun in your eyes. Not minding that time's passing by

I've got all and more, My smile, just as before. Is all that I carry with me

I talk to myself, I need nobody else. I'm lost and I'm mine, yes I'm free



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OfflineKonyap

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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: musiclover420]
    #24029728 - 01/22/17 06:07 AM (7 years, 8 days ago)

thanks for the link  :hatsoff:

I get this weird signal in my router sometimes
it's related to what state you're in
really strange

edit: your computer does make sounds, certain programming languages actually debug and crash and make an audible sound unrelated to the speakers


Edited by Konyap (01/22/17 06:48 AM)


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Offlinethehighking
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: Konyap]
    #24029866 - 01/22/17 08:30 AM (7 years, 8 days ago)

Looks like we'll all have to go back to using old phones if we want to remain safe from Big Brother


--------------------
"Reality is merely an illusion, albeit a very persistent one" Albert Einstein


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Offlinex7x_x7x
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: thehighking]
    #24030033 - 01/22/17 09:45 AM (7 years, 8 days ago)

What if you turn off the speakers?


--------------------
cultivando en la miseria

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koh samui and oak ridge are my favourite strains


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InvisibleCall-Me-Bob
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: x7x_x7x]
    #24030119 - 01/22/17 10:22 AM (7 years, 8 days ago)

Quote:

Konyap said:
thanks for the link  :hatsoff:

I get this weird signal in my router sometimes
it's related to what state you're in
really strange

edit: your computer does make sounds, certain programming languages actually debug and crash and make an audible sound unrelated to the speakers



Uhhmm, yes, but what you're explaining is not an uXDT attack...

I don't know how to explain it clearly, but basically your device will play an ultrasonic sound, so humans can't hear it, human can hear frequency between 20Hz to 20kHz...

these sounds can be heared by computers which processes the sound to compare it (simalar as to how Shazam id's songs)

Hopefully you understand cause I don't even understand this, i'm not good at explaining lol:thumbup:

Quote:

thehighking said:
Looks like we'll all have to go back to using old phones if we want to remain safe from Big Brother



Ha--ha... but no... old and new phones both have pros and cons when it comes to privacy and safety

Quote:

x7x_x7x said:
What if you turn off the speakers?



Yes, that's a way to prevent such an attack


--------------------
Call Me Bob


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Offlinetopdog82
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: Call-Me-Bob]
    #24030705 - 01/22/17 02:20 PM (7 years, 8 days ago)

so if I just turn off my speakers on my laptop, I am good? Seems almost too simple lol

Also; I can just go to starbucks and do it on their wifi. I don't think they would send a court order to starbucks?


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OfflineKonyap

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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: topdog82]
    #24030711 - 01/22/17 02:22 PM (7 years, 8 days ago)

if the sound I heard could be muted with a sound wave then all sorts of shit
people could vandalize my house and put poisonous spiders inside


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Invisiblewhitelights
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: Konyap] * 1
    #24031806 - 01/22/17 08:21 PM (7 years, 8 days ago)

I'm sure it doesn't matter what your volume is set too, I bet it can over ride that and send signals through your speaker even when turned all the way off.


--------------------
its that bitter-sweet-sour, electric-smooth-twang. everything you ever have, are. or will feel along with every emotion, joy, hate, love, fear or aspiration burning down your nerves and into the fabric of your place in this existence at ten thousand degrees above and below zero will you find yourself wondering if you've been dead or alive this whole time. being born over and over only to die over and over hoping the wheel stops in the same place it started when you spun it, and when it finally does and you can step back and take a nice deep breath you realize how beautiful life is, remember, wake up to the most beautiful day of your life every single day, its just the way.


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Offlinebigbitch
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: topdog82] * 2
    #24031903 - 01/22/17 08:49 PM (7 years, 8 days ago)

Quote:

topdog82 said:
so if I just turn off my speakers on my laptop, I am good? Seems almost too simple lol

Also; I can just go to starbucks and do it on their wifi. I don't think they would send a court order to starbucks?




If you've got to do stuff like this, why even take your smartphone with you?  that's the only way they could use this.  I don't even mess around with the online stuff, and I will still never buy a smartphone.  I don't have anything to worry about, but it's more that I don't like the idea of being surveilled.  Sometimes it's better just to not trust technology.  Even if you're sure with your phone off, you're not being tracked/listened to etc.  Why have it?  If it's not completely neccessary and you're doing illegal stuff, ditch the technology.


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Invisibledurian_2008
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: bigbitch]
    #24032041 - 01/22/17 09:57 PM (7 years, 8 days ago)

In my uneducated opinion, people are reading about encryption, before learning how to encrypt, and paying for a VPN, before they are able to use a secure payment method. The money is ultimately withdrawn through public venues.

I think, these are like privacy hedges and padlocks, which deter casual intruders, but not devoted ones.

Also, people would willingly pay nominal taxes, for basic infrastructure and legal protections. If it wasn't a plantation atmosphere, you wouldn't have to worry about escapes. You would be like the tax shelter countries, and people would invest in you.


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OfflineEllis Dee
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: Call-Me-Bob]
    #24032975 - 01/23/17 10:53 AM (7 years, 7 days ago)

Another great reason not to own a smartphone. If you've been carrying one of these tracking and bugging devices I advise you to make a privacy upgrade to a phone incapable of snitching on you.


--------------------
"If the foundations be destroyed, what can the righteous do."-King Solomon

And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,


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OfflineEverything
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: bigbitch]
    #24034281 - 01/23/17 07:21 PM (7 years, 7 days ago)

There are so many people out there that don't know much about  the technology they use, however that doesn't stop anyone from using it. Teenagers especially will sanpchat, text, instagram pics of drugs with prices and use certain aspects of these apps to get the word out in mass to make money. this is definitely sketchy, and not recommended. i am with the guy prior to mme, anyone doing illegal activities should travel the road less technological..

However i would think all the naive youth doing all these illegal thing unencrypt would take the heat off tor/vpn users and whateever. kind seems like things are going the other way though in that regard. the people using less enxrytpion and being out in the open don't seem as much a "threat" to feds as a darknet vendor.


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Offlinemusiclover420
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: Everything]
    #24034310 - 01/23/17 07:29 PM (7 years, 7 days ago)

Smart phones also can be encrypted using modern advanced tech that older phones would not be capable of.

So I would say they could be more secure if you are smart. Who knows for sure though.


--------------------
Don't worry about me, I've got all that I need. And I'm singing my song to the sky

You know how it feels, With the breeze of the sun in your eyes. Not minding that time's passing by

I've got all and more, My smile, just as before. Is all that I carry with me

I talk to myself, I need nobody else. I'm lost and I'm mine, yes I'm free



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Offlinetopdog82
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: Everything]
    #24034674 - 01/23/17 10:01 PM (7 years, 7 days ago)

Quote:

Everything said:
There are so many people out there that don't know much about  the technology they use, however that doesn't stop anyone from using it. Teenagers especially will sanpchat, text, instagram pics of drugs with prices and use certain aspects of these apps to get the word out in mass to make money. this is definitely sketchy, and not recommended. i am with the guy prior to mme, anyone doing illegal activities should travel the road less technological..

However i would think all the naive youth doing all these illegal thing unencrypt would take the heat off tor/vpn users and whateever. kind seems like things are going the other way though in that regard. the people using less enxrytpion and being out in the open don't seem as much a "threat" to feds as a darknet vendor.



haha ya. A lot of people at my old gym bought steroids off instagram hahahahahaha. like cmon. I feel like thats just silly


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Invisibledurian_2008
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: topdog82]
    #24035687 - 01/24/17 10:34 AM (7 years, 6 days ago)

Noone is particularly building a separate intranet. They are piggybacking onto one, communal infrastructure. So, there will always be an exit node, imho. There is always a trail of circumstantial evidence, leading to the download of whichever app, or the purchase of whichever equipment.


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InvisibleOgla
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: durian_2008]
    #24036471 - 01/24/17 04:04 PM (7 years, 6 days ago)

shut the damn phone off next time your browsing tor. damn


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Invisibledurian_2008
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: Ogla]
    #24041166 - 01/26/17 12:30 PM (7 years, 4 days ago)

I look at religious subject matter on Youtube, and this "Creepy Pasta" :awesomenod: :facepalm: tells tall tales, about the Dark Net.

I hear there are virtual libraries, there, and artsy, alt media. I go to look, and thought it was uninspired, underutilized.

I leave a playful test message, in a hyper partisan forum, where I was blocked, and they can still see who I am, while I am dabbling -- tamely.

I think this has knowable rules. It's measurable and can be understood.

But, it's mostly mystique. :shrug:

If you can get tripped up by that, you're a patsy.

Be clean, responsible, and dignified.


Edited by durian_2008 (01/29/17 10:45 AM)


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Offlinekeyser_soze
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: durian_2008]
    #24047248 - 01/28/17 06:59 PM (7 years, 2 days ago)

Quote:

durian_2008 said:
In my uneducated opinion, people are reading about encryption, before learning how to encrypt, and paying for a VPN, before they are able to use a secure payment method. The money is ultimately withdrawn through public venues.

I think, these are like privacy hedges and padlocks, which deter casual intruders, but not devoted ones.

Also, people would willingly pay nominal taxes, for basic infrastructure and legal protections. If it wasn't a plantation atmosphere, you wouldn't have to worry about escapes. You would be like the tax shelter countries, and people would invest in you.





What you've just said is one of the most insanely idiotic things I have ever heard. At no point in your rambling, incoherent response were you even close to anything that could be considered a rational thought. Everyone in this thread is now dumber for having listened to it. I award you no points, and may God have mercy on your soul.


--------------------
People in my Fan Club: Masked (President), Ballsalsa (VP), The Ecstatic*don't waste your time "debating" with him, he uses 3rd grader tactics (Director of Bullshit), Koods (Fake News Anchorman), Falcon - Devout Communist

*Word your posts carefully if they contain right wing values. The moderators here like to keep it left leaning, they will use every excuse to ban you but not the others. You've been warned.


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Invisibledurian_2008
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Re: Tor users at risk of being unmasked by ultrasound tracking [Re: keyser_soze]
    #24048623 - 01/29/17 10:49 AM (7 years, 1 day ago)

Try one phrase at a time, to arrive at a specific question.  :thumbup: :stoned:


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