On November 20 and 21, 2024, the second meeting of the Priority Program SPP 2253 Nano Security was held at the Leibnitz Institute of Photonic Technology (IPHT) in Jena. The meeting was organized by Dr. Nan Du of IPHT and Friedrich-Schiller University Jena. Beyond the regular project progress desicussions, one highlight was the keynote by Professor Markus Schmid of IPHT on the topic "Meta-fibers: Merging Metasurfaces with Optical Fibers via 3D Nanoprinting for Tailored Beam Manipulation."