Detecting eavedropping devices in PC parts?

Is there an easy way to check wehther a certain PC component has 
eavedropping device ATTACHED? :)

On 18.02.23 17:08, Mr. Man-wai Chang wrote:
>
> Is there an easy way to check wehther a certain PC component has
> eavedropping device ATTACHED? :)
>
No.

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).

On 23/02/2023 1:08:53 a.m., whit3rd wrote:
> 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).

This suggestion has unlikely assumptions that voltage input remains 
constant which affects power consumption more than the repetitive 
sounds, also browser background activities are not random and active tab 
dependent which is user dependent, seasonal and many other non-random 
cycles that will send anyone chasing skinny rats like finding ET on SETI.