Except as provided in paragraph (2) and notwithstanding any other provision of law, a non-Federal entity may, for a cybersecurity purpose and consistent with the protection of classified information, share with, or receive from, any other non-Federal entity or the Federal Government a cyber threat indicator or defensive measure.
A non-Federal entity receiving a cyber threat indicator or defensive measure from another non-Federal entity or a Federal entity shall comply with otherwise lawful restrictions placed on the sharing or use of such cyber threat indicator or defensive measure by the sharing non-Federal entity or Federal entity.
A non-Federal entity monitoring an information system, operating a defensive measure, or providing or receiving a cyber threat indicator or defensive measure under this section shall implement and utilize a security control to protect against unauthorized access to or acquisition of such cyber threat indicator or defensive measure.
Nothing in this paragraph shall be construed to authorize the use of a cyber threat indicator or defensive measure other than as provided in this section.
A State, tribal, or local government that receives a cyber threat indicator or defensive measure under this subchapter may use such cyber threat indicator or defensive measure for the purposes described in section 1504(d)(5)(A) of this title.
Except as provided in clause (ii), a cyber threat indicator or defensive measure shared with a State, tribal, or local government under this subchapter shall not be used by any State, tribal, or local government to regulate, including an enforcement action, the lawful activity of any non-Federal entity or any activity taken by a non-Federal entity pursuant to mandatory standards, including an activity relating to monitoring, operating a defensive measure, or sharing of a cyber threat indicator.
A cyber threat indicator or defensive measure shared as described in clause (i) may, consistent with a State, tribal, or local government regulatory authority specifically relating to the prevention or mitigation of cybersecurity threats to information systems, inform the development or implementation of a regulation relating to such information systems.
Except as provided in section 1507(e) of this title, it shall not be considered a violation of any provision of antitrust laws for 2 or more private entities to exchange or provide a cyber threat indicator or defensive measure, or assistance relating to the prevention, investigation, or mitigation of a cybersecurity threat, for cybersecurity purposes under this subchapter.
The sharing of a cyber threat indicator or defensive measure with a non-Federal entity under this subchapter shall not create a right or benefit to similar information by such non-Federal entity or any other non-Federal entity.