Electronic Government [No. 41 of 2021 517 “geographic information system” means an information system that involves locational data, including maps or other geospatial information resources; “identity” means designation of a specific person by means of data which distinguishes that person from other persons including name, date of birth, place of birth, company name, alpha numerical or other unique identifying data designations; “information security” means the state of being protected against the unauthorised use of information, especially electronic data or the measures taken to achieve this; “information system” means a system for generating, sending, receiving, storing, displaying or otherwise processing data messages, and includes the internet; “public body” has the meaning assigned to the words in the Public Finance Management Act, 2018; Act No. 1 of “Public Key Infrastructure (PKI)” means a framework for creating a secure method for exchanging information based on public key cryptography; 2018 “public officer” has the meaning assigned to the words in the Constitution; Cap. 1 “public register” means a register required to be maintained by a public body under any other written law; “public service” has the meaning assigned to the words in the Constitution; Cap. 1 “source identification number “ means a number used to identify natural and legal persons and other data subjects which is attributable to the data subject to be identified and which, in the case of a natural person, also serves as the basis for generating sector-specific personal identifiers; and “unique identity” means designation of a specific person by means of one or more features enabling that person to be distinguished from another data subject.