According to Litecoin, its official account stated on Nov 23, 2025 that Litecoin MWEB addresses are quantum resistant (source: Litecoin official post on X, Nov 23, 2025). According to Litecoin, the announcement specifically referenced MWEB addresses and did not include additional technical details in the post (source: Litecoin official post on X, Nov 23, 2025). According to Litecoin, this is an explicit security claim about the MWEB address format that defines the project’s stated posture against quantum attacks (source: Litecoin official post on X, Nov 23, 2025).

According to @caprioleio, Bitcoin must be upgraded to be quantum-proof by 2026, with a warning of severe consequences if no upgrade occurs. Source: https://twitter.com/caprioleio/status/1972473521730462153 The post sets a concrete 2026 timeline for quantum risk management around BTC’s signature schemes, signaling a near-term governance and security focus for market participants. Source: https://twitter.com/caprioleio/status/1972473521730462153 Bitcoin’s current signatures use ECDSA and Schnorr (BIP340) over secp256k1, both based on the discrete logarithm problem that Shor’s algorithm would break on a sufficiently large fault-tolerant quantum computer, underscoring why post-quantum migration is being standardized globally. Source: https://developer.bitcoin.org/devglossary.html#term-ecdsa https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki https://csrc.nist.gov/projects/post-quantum-cryptography