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Security+ Guide to Network Security Fundamentals, Third Edition - page 14 / 60

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Security+ Guide to Network Security Fundamentals, Third Edition

Electromagnetic Shielding (continued)

Faraday cage

A metallic enclosure that prevents the entry or escape of an electromagnetic field

Consists of a grounded fine-mesh copper screening

Telecommunications Electronics Material Protected from Emanating Spurious Transmissions (TEMPEST)

A secret US government standard

Intended to “reduce the conducted and radiated emissions from within the sensitive environment to an undetectable level outside the shielded enclosure in uncontrolled areas”

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