A Wall Street analyst warns that quantum computing could eventually crack the cryptography of bitcoin

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• Christopher Wood, a longtime bitcoin bull, just dumped his portfolio's holdings of the crypto.
• The Jefferies strategist said he believed quantum computing posed an existential risk to bitcoin.
• CRQCs, one type of supercomputer, could jeopardize as much as 50% of bitcoin's total supply, one study said.

A longtime crypto bull is ditching bitcoin for gold.

Christopher Wood, the global head of equity strategy at Jefferies...