An unauthorized copy or substitute that has been identified, marked, and/or altered by a source other than the item's legally authorized source and has been misrepresented to be an authorized item of the legally authorized source.
Source(s):
NIST SP 800-161
under Counterfeit (Goods)
from
18 U.S.C.
NIST SP 800-53 Rev. 5
from
NIST SP 800-161