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Crypto

Quantum computing threatens bitcoin, VanEck says solution exists even if slow

Bitcoin could be exposed to threats from quantum computing, but its community is already preparing responses, an assessment said. VanEck digital assets research head Matthew Sigel said bitcoin\'s decentralised structure could slow action, but technical solutions are being discussed. Industry concerns focus on whether future quantum computers could break bitcoin\'s cryptography, though none can do so now. Developers are testing quantum-resistant signatures, while Coinbase, Blockstream and a new security consortium are developing and backing proposals.

Crypto

G7 urges rapid preparations for quantum computing threat; bitcoin, ethereum also on alert

A G7 cybersecurity working group urged governments and companies to immediately begin shifting to post-quantum cryptography, warning that technology threatening existing public-key systems is advancing faster than expected. It highlighted the risk of attacks that harvest encrypted data now and decrypt it later. The EU has set timelines for migration. Bitcoin is considering BIP-360, while Ethereum plans broader upgrades. Larger post-quantum signatures could raise storage, bandwidth and transaction costs.

Crypto

Bitcoin BIP-110 fork row flares; Ripple ex-CTO says premise is wrong

David Schwartz (데이비드 슈워츠), a former chief technology officer of Ripple, criticised the logic behind a split-chain push by supporters of Bitcoin’s BIP-110. He argued that the phrase “fixing the legacy chain” rests on a flawed premise. The exchange followed a debate over a planned hard fork that would switch the proof-of-work algorithm from SHA-256d to BLAKE2b. Broader ecosystem support for the new chain remains unconfirmed.