BNB Chain published an official BSC Post-Quantum Cryptography Migration Report describing tests of a post-quantum cryptography upgrade on BSC. The test replaced ECDSA transaction signatures with NIST-standard ML-DSA-44 and switched validator vote aggregation from BLS12-381 to pqSTARK. According to the report, the upgrade passed testing but reduced throughput by 40%, while signature data expanded by about 37 times. BNB Chain concluded that additional network scaling is required before any mainnet deployment, underscoring the trade-off between stronger quantum-resistant security and current network efficiency.