significant incident

(A) means an incident or a group of related incidents that results, or is likely to result, in demonstrable harm to—

(i) the national security interests, foreign relations, or economy of the United States; or

(ii) the public confidence, civil liberties, or public health and safety of the people of the United States; and

(B) does not include an incident or a portion of a group of related incidents that occurs on—

(i) a national security system (as defined in section 3552 of title 44); or

(ii) an information system described in paragraph (2) or (3) of section 3553(e) of title 44.