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Does Quantum Computing Threaten Bitcoin?
Friends and associates,
AI is moving fast, which has led some to speculate that the time horizon until quantum computing is rapidly declining. Many people ask: “If quantum computers arrive, does Bitcoin survive?” I joined Ciaran Ryan on the Moneyweb Crypto Podcast to unpack this exact question.

In theory:
Quantum computers could break Bitcoin’s cryptography (ECDSA)
Private keys could be derived from public keys
Bitcoin funds could be stolen
But in practice:
We’re not there (yet) - fault-tolerant quantum machines are likely 10–15 years away
It’s not just Bitcoin - banks, governments & institutions all rely on the same cryptography
Bitcoin can adapt - but upgrades would likely require a hard fork and broad community consensus, which makes preparation essential
The good news? The Bitcoin dev community is already discussing quantum-safe upgrades (BIP-360, QRAMP, etc.).
I don’t lose sleep over quantum computing. This is an opportunity to learn more about the technology and its upgrade process. There are already steps you can take to improve your security against the quantum threat, such as never reusing receive addresses. Its good to understand these threats and remain confident in bitcoin’s long-term security as it advances along its winding path to global reserve asset status. If you’d like to read more, I wrote a longer article on the quantum threat a few months ago.
Keep the questions coming! Wishing you a wonderful rest of August!
Rob Price, CFA

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