What You Should Know Before Leaking a Zoom Meeting

Re:What You Should Know Before Leaking a Zoom Meeting by duckfang on Tuesday January 19, 2021 @12:48AM (#25830426)

We can thank Michael Ossmann for his DC25 talk about detecting and pulling DSSS signals out of noise. He also posts proof of concept code to do just that, including also detecting the chip sequences and chiprate. https://hackaday.com/2017/07/29/michael-ossmann-pulls-dsss-o...

We're also dealing with only 48KHz, which is 2-3 magnitudes less than what SDR people are accustomed to dealing with.

And we can also make our own detection systems by having a 3 person "meeting" with fake audio, with this fingerprinting on, and then comparing the 3 recordings.

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Re:What You Should Know Before Leaking a Zoom Meeting by a1369209993 on Tuesday January 19, 2021 @03:12AM (#25831069)

> Michael Ossmann for his DC25 talk

Link to the video? Searches aren't coming up with anything useful.

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Re:What You Should Know Before Leaking a Zoom Meeting by zo1 on Tuesday January 19, 2021 @03:47AM (#25831276)

Struggled to find it via google. Eventually Bing Video search worked...

https://www.youtube.com/watch?v=z9RkPt6uVQ4

Note, it's not from the official Def Con channel, so some fuckery is afoot.

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Re:What You Should Know Before Leaking a Zoom Meeting by zo1 on Thursday January 21, 2021 @03:36AM (#25856773)

Minor correction: The talk was made at "RECON" instead of DefCon.

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Re:What You Should Know Before Leaking a Zoom Meeting by a1369209993 on Thursday January 21, 2021 @02:18PM (#25862869)

Well, that explains why I couldn't find it. Thanks for tracking it down.

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