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TEMPEST certified equipment or system


  Equipment or systems that have been certified to meet the applicable level of NSTISSAM TEMPEST/1-92 or previous editions. Typically categorized as Level 1 for the highest containment of classified signals; Level II for the moderate containment of classified signals; and Level III for the least containment of classified signals.
CNSSI 4009-2015 from CNSSAM TEMPEST/01-13