According to @cas_abbe, Algorand has executed live quantum-secure transactions on mainnet, confirming real-world deployment rather than a roadmap item, which is directly relevant to ALGO fundamental analysis and security-driven trading theses, source: Cas Abbé (X post, Dec 9, 2025). The source states Algorand protects chain history with quantum-secure signatures and now supports creating new accounts and transactions in a quantum‑resistant way, source: Cas Abbé (X post, Dec 9, 2025). Falcon is identified as the selected post‑quantum digital signature standard by NIST, reinforcing the credibility of the chosen primitive for Algorand’s implementation, source: NIST Post‑Quantum Cryptography standardization program. The source characterizes Algorand as ahead of other chains on quantum security, positioning ALGO with a distinct security narrative that traders can factor into comparative chain analysis, source: Cas Abbé (X post, Dec 9, 2025).

According to Charles Edwards (@caprioleio), quantum computing is Bitcoin’s biggest existential threat and, once a replacement is selected, the ecosystem would have roughly 12 months to migrate, placing urgency on protocol choices that traders should monitor; source: Charles Edwards on X, Aug 21, 2025. Bitcoin relies on ECDSA over secp256k1 for transaction signatures, which is vulnerable to sufficiently powerful quantum attacks such as Shor’s algorithm, making signature replacement the core mitigation; source: NIST Post-Quantum Cryptography program and Bitcoin.org Developer Guide. NIST has standardized post-quantum signature schemes including CRYSTALS-Dilithium and SPHINCS+, offering candidate pathways for migration that Bitcoin developers could evaluate; source: NIST Post-Quantum Cryptography standards 2022–2024. Traders should watch for any Bitcoin Improvement Proposal introducing post-quantum signatures and activation timelines, as protocol changes require broad consensus and staged rollout; source: Bitcoin Improvement Proposals repository. Coins reveal public keys when spent, so UTXOs with exposed public keys carry higher quantum-theft risk under a breakthrough, informing on-chain risk assessment; source: Bitcoin.org Developer Guide and Bitcoin Wiki.