Reply to post: Re: Lots of mentions of TEMPEST...

It's 2016 and your passwords can still be sniffed from wireless keyboards

Anonymous Coward
Anonymous Coward

Re: Lots of mentions of TEMPEST...

TEMPST is a matter of ANY AND ALL electromagnetic leakages. CRTs are simply the most obvious, but they're paranoid enough to want checks on the fluctuations that could come from the mains cable, keyboard cables, etc. They want as close as possible to a zero-EMI device (since EMI can be picked up and interpreted) while still being functional.

PS. As for range, thing a Software-Defined Radio paired up with a well-made Yagi (highly-directional) antenna.

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