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|    sci.electronics.basics    |    Elementary questions about electronics    |    72,318 messages    |
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|    Message 72,252 of 72,318    |
|    whit3rd to Mr. Man-wai Chang    |
|    Re: Detecting eavedropping devices in PC    |
|    22 Feb 23 22:08:53    |
      From: whit3rd@gmail.com              On Saturday, February 18, 2023 at 8:09:06 AM UTC-8, Mr. Man-wai Chang wrote:       > Is there an easy way to check wehther a certain PC component has       > eavedropping device ATTACHED? :)              Well, kinda. Just make a repetitive sound and check the power drain in the       PC to see if it induces a repetitive current draw. In other words,       measure correlation over a long term. Other than a microphonic       component, it's not likely this test will find a correlation there.              That assumes that there's no store-and-forward internal element, and that       PC operational 'noise' isn't dominant (over the long term, like hours, noise       will average to zero).              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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