Satoshi's Bitcoin Can Be Saved from Quantum Attack, Expert Claims

Quantum attacks on Bitcoin are no longer a theoretical threat, and one privacy-focused blockchain startup claims it has a plan to protect Satoshi Nakamoto's 1.1 million dormant BTC — along with millions of other inactive coins — before quantum computers become powerful enough to crack them open.

Why dormant Bitcoin is the network's biggest vulnerability

Early Bitcoin addresses used a format called Pay-to-Public-Key (P2PK), which exposes the public key directly on-chain. With sufficient quantum computing power, an attacker could reverse-engineer the private key and drain those wallets entirely. Cryptographers have been flagging this for years — the debate isn't if, it's when.

What the quantum defense plan actually involves

The startup — not fully named in CoinDesk's reporting — has developed what it calls a multi-layer quantum defense. The core mechanism is a soft fork designed to freeze vulnerable addresses, particularly old dormant UTXOs, while the network transitions to quantum-resistant cryptographic standards. The key components of the proposal are:

• Voluntary freezing of funds held in legacy P2PK addresses
• Migration to post-quantum algorithms approved by NIST
• A soft fork mechanism that maintains backward compatibility with the current network

The team says this would protect not just Satoshi's coins, but millions of additional BTC sitting untouched in early-era wallets.

What this really means — and who wins

Let's be blunt: a soft fork that freezes funds, even with the best intentions, is politically radioactive in the Bitcoin ecosystem. The community has killed far less controversial proposals before. The startup clearly wins by positioning itself as the leader in post-quantum security — that's valuable whether or not the fork ever happens. What's at risk is Bitcoin's core identity: the promise of immutability and self-sovereignty that's been its selling point for 15 years.

What comes next for the broader crypto industry

If quantum hardware advances faster than Bitcoin's cryptographic upgrades, the fallout could shake confidence across the entire crypto market. This proposal, controversial as it is, forces a conversation that has been too easy to postpone. Ethereum and other networks are already exploring post-quantum transitions — that pressure may push Bitcoin's notoriously conservative developer community to move faster than they'd like.

The question no one wants to answer out loud: is Bitcoin actually built to survive the quantum era?

Source: CoinDesk