; (B) a State or political subdivision thereof; (C) or any agency, authority, or instrumentality of a State or political subdivision thereof. (18) Individual The term individual means a natural person residing in the United States. (19) Indian Tribe The term Indian Tribe has the meaning given such term in section 4(e) of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5304(e) ). (20) Maintain The term maintain means, with respect to personal information or the contents of any communication, to store, secure, or otherwise cause the retention of such information or contents, or to take actions necessary for storing, securing, or otherwise causing the retention of such information or contents. (21) Nonpublic information The term nonpublic information means information that has not been disclosed in a criminal, civil, or administrative proceeding, in a government investigation, report, or audit, or by the news media or other public source of information, and that was not obtained in violation of the law. (22) Personal information (A) In general The term personal information means any information maintained by a covered entity that, on its own or combined with other information, is linked or reasonably linkable to a specific individual or a specific device, including de-identified personal information and the means to behavioral personalization created for or linked to a specific individual. (B) Exclusions The term personal information does not include— (i) publicly available information linked to an individual