; or (C) the protected activity occurred— (i) in the territory of a country governed by a designated foreign authority which seeks to restrict such activity; and (ii) during an overseas trip or assignment such employee or contractor undertook on behalf of the domestic entity. (4) Rule of construction on social media For the purpose of determining whether protected activity was conducted in an employee or contractor’s official capacity, protected activity on a social media account or other analogous medium of communication which is used both in an official and unofficial capacity, shall be presumed to be used in an unofficial capacity, absent clear and convincing evidence to the contrary. (b) Prohibition on contractual limitations A domestic entity may not require, as a condition of employment, contract, or any compensation, benefit, or privilege related to such employment or contract, a prospective, existing, or former employee or contractor to— (1) limit a protected activity conducted in an unofficial capacity, provided such protected activity would reasonably be expected to trigger the prohibition on retaliation described in subsection (a)