The TEMPEST threat to information security was first recognised by the US National Security Agency (NSA) and GCHQ in the 1960s. TEMPEST was originally a military codeword, subsequently rationalised as an acronym for terms such as “Transmitted ElectroMagnetic Pulse Emission Standard” or “Telecommunications Electronics Material Protected from Emanating Spurious Transmissions”.
Read more on this in the Mar 2023 issue of PBSI, here.
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