With 2026 already here, the crypto industry is racing to prepare for the quantum computing threat that could break current cryptographic standards.
Major blockchains have begun active research:
- Bitcoin: Proposals like BIP-360 and hash-based signatures (Blockstream, Project Eleven)
- Ethereum: Established Post-Quantum group with $2M funding for research prizes
- Solana: Successful testnet with Project Eleven achieving 65,000 TPS quantum-resistant transactions
- Others (Cardano, XRP Ledger, Aptos): Testing NIST-standardized signatures (Dilithium, SLH-DSA)
However, all solutions remain in testing or proposal stage — no mainnet deployment yet. Challenges include much larger signature sizes (up to 82x), higher fees, and the need for consensus upgrades. Real quantum threat (Shor’s algorithm breaking ECDSA) is still estimated for 2030–2035.
Lesson for ONFA community: Quantum risk is real but not immediate. Move BTC from old P2PK/reused addresses to Native SegWit, follow project roadmaps closely, and avoid panic — focus on long-term security upgrades.
