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  • @Anton338 Sorry to say chum, but it is VERY practical; and of course you have to be fairly close. We have already tested the vulnerabilities, and have demonstarted that we can lift information from screens and keyboards by both radiated and conduscted emissions. Of course the further the distance the more difficult it becomes.

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  • watch?v=HYYm9Lin8X4

    The capability has been known about since the inception of computers, which is why secure terminals sit behind TEMPEST protection. Encryption means squat if they're reading the EM from your screen or keyboard. I imagine software could be written to give an accurate display of everything which happens in any given computer from quite a distance away; use a pencil.

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