Ok prepare to strap that tinfoil hat on two notches below excruciating; we’re going to talk about TEMPEST. What is TEMPEST? It’s defined in NSTISSI-7000 as:
Electronic and electromechanical information-processing equipment can produce unintentional intelligence-bearing emanations, commonly known as TEMPEST. If intercepted and analyzed, these emanations may disclose information transmitted, received, handled, or otherwise processed by the equipment.
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