Appendices 1. Information And Communications Technology (ICT) Supply Chain Risk Management (SCRM) Task Force (TF) Threat Evaluation Working Group: Threat Scenarios, CISA, February 2020 2. CISA 5G RDT&E Efforts Infographic, CISA, May 2020 3. Overview Of Risks Introduced By 5G Adoption In The United States, CISA, July 31, 2019 4. Executive Order 13873 Response - Methodology For Assessing The Most Critical Information And Communications Technologies And Services, CISA, April 2020 5. Summary of Responses to the NTIA Secure 5G Request for Comment, National Telecommunications and Information Administration, July 27, 2019 2