TEMPEST

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TEMPEST

An umbrella term for external electromagnetic radiation from data processing equipment and the security measures used to prevent them. Almost all electronic equipment, including chips, bus pathways and metal communications lines, emanates signals into free space or surrounding conductive objects such as metal cabinets, wires and pipes. Equipment and cables that meet TEMPEST requirements have extra shielding in order to keep data signals from escaping and being picked up by unauthorized eavesdropping. It is also possible to use TEMPEST software that generates sufficient electronic noise to mask meaningful radio-frequency emissions.

TEMPEST was a code name for U.S. military operations throughout the 1960s. The name was turned into several informal reverse acronyms such as Telecommunications Electronics Material Protected from Emanating Spurious Transmissions or Transient ElectroMagnetic Pulse Emanation STandard (see backronym). See emanation and EMSEC.
References in periodicals archive ?
Leo Bailey (Martin Vanghan) is a drink-sodden old artist who, alter decades of alcoholic abuse and self-indulgent tempestuousness, has pushed away all his friends, three ex-wives and all but one of his children.
Natural phenomena are cast as stereotypical male perceptions of manifestations of femininity and are imbued with all the characteristic attributes thereof: temperament, unpredictability, irrationality, jealousy and tempestuousness.
But maybe tempestuousness will be the rage this year--particularly among Democratic primary voters who oppose the war in Iraq, think Bush's tax cuts are a giveaway to the wealthy, and believe the president and his well-positioned brother stole the 2000 election in Florida.
You both like romance and adventure on a grand scale and you won't be frightened off by each other's tempestuousness.
And so it was that in one moment of childish tempestuousness the fiance of Posh Spice Victoria Adams became the male version of Baby Spice.
2 with higher score showing lower self-control) is a linear composite of the z-score transformations of twenty-three items concerning impulsivity, preference for simple tasks, risk seeking, and physical activities, as well as a tendency toward self-centeredness and tempestuousness.
In August 1989 she made an official visit to the worst of all Stalinist tyrannies, as the personal guest of Nexhmije Hoxha, official widow of the dictator and a rival in tempestuousness to Michele Duvalier herself.
She inherited her mother's sensuality and tempestuousness, as well as her sensitivity to oppression and injustice.