Protected information from 2000 French article (6)
I believe the answer is:
immune
'protected' is the definition.
(I've seen this in another clue)
'information from 2000 french article' is the wordplay.
'information' becomes 'i' (common abbreviation for information).
'from' is a charade indicator (letters next to each other).
'2000' becomes 'MM' (2000 in Roman numerals).
'french article' becomes 'une' (indefinite article in French).
'i'+'mm'+'une'='IMMUNE'
(Other definitions for immune that I've seen before include "Resistant, unaffected" , "Not susceptible to, say after inoculation" , "Not liable to, protected from" , "Safe from infection etc" , "Cannot be infected" .)