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by rickdeckard
2330 days ago
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There's also the big difficulty to harvest laser beans... But seriously, I wouldn't say this one is less efficient, both attacks are quite different in scope.
The laser-based attack requires line-of-sight to the device and apparently works only on stationary home-assistants (i.e. your Google Home), while this ultrasonic method explicitly targets Smartphones and has potential for wide unfocused attacks at public spaces (i.e. by rigging a table in a coffee-shop). |
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Especially considering it's lost or perhaps extinct. https://en.wikipedia.org/wiki/Silphium
HN Discusson from a few days ago: https://news.ycombinator.com/item?id=22229666