Bitcoin vs. Quantum Computers: How Developers Plan to Save Satoshi’s Coins
What if someone in the future could steal Bitcoin belonging to Satoshi Nakamoto—the creator of Bitcoin? This isn’t science fiction; it’s a real threat quantum computers could pose. Developer Jameson Lopp has proposed a radical solution: temporarily “freeze” roughly 1.7 million BTC that are currently vulnerable to such attacks. It’s a proactive step—securing the network before the danger becomes real.
Why Older Bitcoins Are at Risk
Not all addresses on the Bitcoin blockchain are equally secure. In Bitcoin’s early years, so-called P2PK addresses (Pay-to-Public-Key) were used. These have a critical quirk: the public key—the part of the information required to access the wallet—is exposed publicly. Modern standard addresses do not do this.
Today, this isn’t a problem because deriving the private key (the wallet’s true “password”) from the public key is computationally impossible—even for the most powerful supercomputers. But quantum computers—which don’t yet exist at scale—could theoretically accomplish this. And then anyone with such a machine could steal coins from those addresses.
Among these vulnerable coins are approximately 1 million BTC, likely belonging to Satoshi Nakamoto himself. That’s about 5% of Bitcoin’s total supply—and worth tens of billions of dollars today.
How BIP-361 Works
Jameson Lopp and his team of developers have proposed a new Bitcoin standard: BIP-361. It introduces a two-stage protection strategy:
- Isolate legacy addresses — prohibit sending new BTC to P2PK addresses, rendering them unusable in standard transactions.
- Freeze the funds themselves — block the ability to spend BTC from these addresses until the owner proves ownership using their seed phrase (a secret recovery phrase).
This doesn’t mean the coins disappear. Owners can unfreeze them later—but only if they can prove they’re the legitimate wallet holders. This approach prevents theft while preserving rightful ownership.
The Quantum Threat Isn’t Tomorrow—But Preparation Must Start Now
Quantum computers capable of breaking Bitcoin’s cryptography haven’t been built yet. Experts estimate this could take 10–15 years—or may never happen. But as Lopp puts it, waiting until the threat materializes is far too risky—especially if an attacker acts not for profit, but to undermine trust in Bitcoin.
“An attack on Bitcoin may be motivated not by economics, but by politics or malice—where the attacker seeks to destroy Bitcoin’s value and credibility, rather than extract financial gain,” he explains.
Recently, analyst Nic Carter also urged the community to accelerate work on quantum resistance, warning that Ethereum could overtake Bitcoin in resilience if developers fail to act.
Key Takeaways
- Roughly 1.7 million BTC sit on legacy addresses vulnerable to future quantum attacks.
- Among them: ~1 million BTC likely belonging to Satoshi Nakamoto.
- The BIP-361 proposal recommends temporarily freezing these funds for protection.
- Owners can unfreeze coins by proving ownership.
- This is a preventive measure—quantum computers aren’t yet capable of such attacks.
What This Means for Regular Users
If you store Bitcoin in a modern wallet (SegWit or Taproot), your funds are safe—this threat doesn’t affect you. But if you’re using a very old wallet or received BTC before 2012, consider checking your address type and, if needed, moving funds to a newer wallet. Most importantly: don’t panic. This isn’t an urgent threat—it’s a long-term network-level security strategy. Bitcoin continues evolving to remain trustworthy—even in the face of future technologies.
— Editorial Team
