The Joint Committee of the European Supervisory Authorities (EBA, ESMA and EIOPA) said threats "could materialize earlier than any viable commercial application" in its Autumn 2026 Risk and Vulnerabilities report. It warned an advanced quantum computer could undermine cryptography securing communications, transactions, databases and blockchains. The warning renews debate over whether to freeze bitcoin in legacy wallets. According to Cryptoquant, roughly 6.9 million bitcoin, worth about $586 billion, are currently vulnerable. The report gives no commercial timeline, though a recent IBM report projects quantum computing in use within four years.

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