“Most Bitcoin Is Unhackable”: CoinShares Researcher on Quantum Computers

• Why Quantum Computers Aren’t a Bitcoin Killer
• The Real Vulnerabilities (and Why They’re Overblown)
• Bitcoin’s Built-In Resilience
• FAQs: Quantum Computers vs. Bitcoin

Quantum computers have long been a topic of heated debate in the crypto world, with fears they could crack Bitcoin’s cryptography. But according to Christopher Bendiksen, Head of bitcoin Research at CoinShares, the reality is far less dramatic. In this deep dive, we explore why most Bitcoin is safe from quantum attacks, how the network could adapt, and why burning "at-risk" coins is a bad idea. Spoiler: Bitcoin isn’t going anywhere.

Why Quantum Computers Aren’t a Bitcoin Killer

The idea of quantum computers breaking Bitcoin’s security sounds like sci-fi, but Bendiksen cuts through the hype. "No, quantum computers won’t destroy Bitcoin," he states bluntly. The real risk lies in their potential to crack certain cryptographic assumptions—specifically, deriving private keys from public ones. But here’s the catch: most Bitcoin addresses don’t expose public keys until a transaction is signed, leaving attackers a mere 10-minute window to act. Good luck with that.

The Real Vulnerabilities (and Why They’re Overblown)

Even if quantum tech advances, attacks WOULD likely target low-hanging fruit first: old "Pay-to-Public-Key" addresses where public keys are visible on-chain. But as Bendiksen notes, "It’d be a slow burn, not a market crash." Think thousands of individual cracks, not a single apocalyptic heist. Meanwhile, Bitcoin’s devs are already eyeing quantum-resistant upgrades via soft forks—a smoother fix than, say, torching "risky" coins (which Bendiksen calls "a terrible precedent").

Bitcoin’s Built-In Resilience

Beyond crypto, quantum breakthroughs would wreak havoc on global internet infrastructure. "Bitcoin’s the least of our worries," quips Bendiksen. With developers proactively researching defenses and the network’s inherent safeguards (like hash addresses), Bitcoin’s odds look solid. As for price swings? "Some investors fret, but if quantum tech matures, we’ll have bigger fish to fry."

FAQs: Quantum Computers vs. Bitcoin

Can quantum computers destroy Bitcoin?

No. While they could theoretically compromise some cryptographic methods, Bitcoin’s design (like hiding public keys until transactions) limits exposure. Most coins are safe.

Which Bitcoin addresses are most at risk?

Legacy "Pay-to-Public-Key" addresses where public keys are openly stored on the blockchain. Modern "Pay-to-Script-Hash" addresses are far more secure.

How might Bitcoin adapt to quantum threats?

Likely via a soft fork introducing quantum-resistant address types. Users would migrate funds voluntarily—no forced burns or confiscations.

Is the crypto community taking this seriously?

Yes, but without panic. Developers are balancing quantum research with other upgrades, and practical quantum computers remain theoretical.

Could this affect Bitcoin’s price?

Short-term FUD is possible, but quantum risks apply to all digital systems. Bitcoin’s adaptability gives it an edge.