Symmetric-Key Distribution System (SDS) by Quantum Bridge is a quantum-safe, crypto-agile security solution designed to safeguard sensitive data and communications across networks. SDS uses patented technology that integrates into existing infrastructure, providing efficient and scalable key distribution systems for network appliances or endpoint solutions. It incorporates Post-Quantum Cryptography (PQC), Distributed Symmetric Key Establishment (DSKE), and Quantum Key Distribution (QKD). SDS is backed by an auditable security proof ensuring computational unbreakability against classical and quantum threats. It automates the generation and distribution of symmetric keys in your infrastructure, making it future-proof and easily upgradeable. The system is fully automated with an Ansible-based tool that reduces installation and configuration time from days to minutes.