Editors’ choice for the thematic issue “New Materials and Technologies for Security Systems” is the paper entitled “Using a Biosensor Based on Surface-Enhanced Raman Scattering to Identify Influenza Viruses in Biological Fluids” by the authors G. A. Zhdanov, D. A. Gribanev, A. S. Gambaryan, V. I. Kukushkin, and E. G. Zavyalova (Bulletin of the Russian Academy of Sciences: Physics, 2022, Volume 86, Issue 4, P. 434-437).