Quantum Optics Jena's ELVIS quantum key distribution (QKD) system has become the first quantum communication system to pass six independent security tests under ISO/IEC 23837, conducted by TÜV Informationstechnik GmbH. The evaluation specifically targeted hardware-based side-channel attacks — exploits against lasers, detectors, and optical components — which represent the most practical real-world threat to QKD systems. No major weaknesses were found. The testing was developed under Germany's QuNET+BlueCert initiative and is intended to lay groundwork for commercial certification standards for quantum communication, as governments and enterprises increasingly consider quantum-safe infrastructure for critical sectors like energy, finance, and defense.