assure cyber security by using services provided by public communications networks and/or public electronic communications services on their websites or by other means of mass media. 4. Digital information hosting service providers publicly announce on their websites or use any other means of mass media to publish recommendations to digital information hosting service providers with regard to measures meant to assure cyber security by use of digital information hosting services. 5. Digital service providers: 1) publicly announce on their websites or use any other means of mass media to publish recommendations to service providers with regard to measures intended to assure cyber security by use of services provided by digital service providers; 2) assign a representative to carry out activities on behalf of the digital service provider in the European Union. Such representative shall be a natural or a legal person established in one of those EU Member States in which digital services are provided. Cyber security policy implementation authorities have the right to address the representative of a digital service provider with regard to the performance of duties of a digital service provider set forth in this law. If a digital service provider assigns a representative to conduct activities in the Republic of Lithuania, it shall be deemed that the digital service provider is subject to the jurisdiction of the Republic of Lithuania. 6. The provisions of this article shall not apply to small and very small undertakings as defined in the Law on Small and Medium-sized Business Development which provide digital services in the Republic of Lithuania and/or any other EU Member State. CHAPTER IV EXCHANGE OF INFORMATION AND INTERINSTITUTIONAL COOPERATION Article 13. Cyber Security Information Network 1. The purpose of the cyber security information network is to share information about potential or past cyber incidents, also recommendations, orders, technical solutions and other measures which help assure cyber security and cooperation among the members of the cyber security information network in the field of cyber security. 2. The cyber security information network can be used solely by those cyber security entities which meet the requirements set forth in the Regulations of the Cyber Security Information Network.