1. FIPS 140-3 Level 4 Hardware Security Modules
All vocal synthesis keys, voice models, and raw physical calibration tensors are sealed inside dedicated Hardware Security Modules (HSMs) certified to FIPS 140-3 Level 4. These physical chips are equipped with active tamper-detection meshes that immediately wipe private credentials if any physical probe, voltage spike, or thermal attack is detected, guaranteeing zero leakage.
