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Google-linked paper warns quantum computers could crack secp256k1 as Ethereum plans post-quantum shift
A research paper involving Google warns that sufficiently advanced quantum computers could eventually break elliptic-curve cryptography used by major blockchains, adding pressure to Ethereum's post-quantum transition plans. The authors estimate 1,200–1,450 logical qubits could crack secp256k1 within minutes, with an “on-spend” attack window potentially as short as 9–12 minutes. Ethereum’s roadmap is expected to take years as larger signatures and higher compute requirements complicate upgrades and user migrations.
ETH
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Mitsubishi to Use JPMorgan’s BDA Blockchain Platform for Cross-Border Transfers
Mitsubishi Corporation is set to use JPMorgan Chase’s Blockchain Deposit Account (BDA) system to enable near-instant international fund transfers. The company aims to roll out full-scale global transfers by fiscal 2026 after completing test transactions. The setup is designed for 24/7 U.S. dollar movements across subsidiaries and may support transfers of up to $500 million each.
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