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I am wonder, can we not just use wireshark and see that is any audio packet send to Facebook or not. I am not network guy so just asking and seeking for valid

by jageen 9y ago

I am wonder, can we not just use wireshark and see that is any audio packet send to Facebook or not. I am not network guy so just asking and seeking for valid explanation.

pliny 9y ago
How can you know if a packet contains audio?
ndesaulniers 9y ago
As a thought experiment, such content would likely be encrypted. The request size can give away the content type, but speech-to-text could be done on device, making it harder to guess the contents based on request size (assuming the identified speech would be significantly smaller compressed relative to audio).
- taneq 9y ago
  Then correlate speaking with CPU usage. Processing audio is always going to have /some/ cost /somewhere/, and likely one we can detect for the time being.
  - oe 9y ago
    Processing doesn't have to be real-time
    - taneq 9y ago
      It does if you want to catch everything that might be important.
edf13 9y ago
What if... - The audio packets aren't recorded from the Fb App? What if... - The audio packets aren't then sent to Fb? Fb only buys this data + integrates = problem solved
- taneq 9y ago
  If both of those are true then your concern is of the form "ANY party records audio data and sells it". Which is why we don't want random apps having permanent mic access. Or permanent anything access. This is why data mining is bad, not just because the party doing the mining can get the data, but because they can sell it to third parties who combine it in unexpected ways to leak data that you really don't want to be public.
  - edf13 9y ago
    It's all about consent... if you give consent that's fine. It's when an App goes behind your back and does it (And then sells it on) then it's bad.
    - taneq 9y ago
      Totally agree. Although now might be a good time to raise the issue that "an obfuscated single-line mention buried in a 60-page clickwrap license presented in an 80x4 character window resulting in over 9000 pages of bullshit that you can't possibly realistically read does not 'consent' make".

by jageen 9y ago

I am wonder, can we not just use wireshark and see that is any audio packet send to Facebook or not. I am not network guy so just asking and seeking for valid explanation.

pliny 9y ago

How can you know if a packet contains audio?

ndesaulniers 9y ago

As a thought experiment, such content would likely be encrypted. The request size can give away the content type, but speech-to-text could be done on device, making it harder to guess the contents based on request size (assuming the identified speech would be significantly smaller compressed relative to audio).

taneq 9y ago
Then correlate speaking with CPU usage. Processing audio is always going to have /some/ cost /somewhere/, and likely one we can detect for the time being.
- oe 9y ago
  Processing doesn't have to be real-time
  - taneq 9y ago
    It does if you want to catch everything that might be important.

edf13 9y ago

What if... - The audio packets aren't recorded from the Fb App? What if... - The audio packets aren't then sent to Fb? Fb only buys this data + integrates = problem solved

taneq 9y ago
If both of those are true then your concern is of the form "ANY party records audio data and sells it". Which is why we don't want random apps having permanent mic access. Or permanent anything access. This is why data mining is bad, not just because the party doing the mining can get the data, but because they can sell it to third parties who combine it in unexpected ways to leak data that you really don't want to be public.
- edf13 9y ago
  It's all about consent... if you give consent that's fine. It's when an App goes behind your back and does it (And then sells it on) then it's bad.
  - taneq 9y ago
    Totally agree. Although now might be a good time to raise the issue that "an obfuscated single-line mention buried in a 60-page clickwrap license presented in an 80x4 character window resulting in over 9000 pages of bullshit that you can't possibly realistically read does not 'consent' make".