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[Undescribed Horrific Abuse, One Victim & Survivor of Many]

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fun factoid!

i believe the first major public appearance of useful tempest security
was when van eck phreaking was demonstrated to convince a government
not to use digital voting machines.

van eck phreaking is the ability to make a copy image of somebody's
display from a distance, via a radio that reads its emissions. this
works for most displays. maybe i can work on it a little!

i don't have any sdrs around atm. maybe it would be helpful to store
some test data.

when you do van eck phreaking, basically you're interested in signals
that are at the pixel clock of your display, and multiples of that
number at the higher harmonics.