Quantum

Bitcoin

Grayscale

<figure>
 <figcaption>
 Cover image via <a href="https://u.today/" rel="noopener noreferrer nofollow">U.Today</a>
 </figcaption>
</figure>
A recent<a href="https://x.com/saylor/status/2000975070810824816" rel="noopener noreferrer nofollow">social media post</a>, Strategy co-founder Michael Saylor has reframed a common fear of quantum computers hacking Bitcoin into a bullish narrative. His argument relies on the technical mechanics of how Bitcoin upgrades and the economic consequences of "lost" coins.
<h2 id="quantum-leap">"Quantum leap"</h2>
Quantum computers could theoretically crack the Elliptic Curve Digital Signature Algorithm (ECDSA) that protects Bitcoin private keys. If this happens, a bad actor could derive private keys from public keys and steal funds.
However, before quantum computers become powerful enough to break ECDSA, the Bitcoin network will implement a soft fork to introduce quantum-resistant encryption (Lamport signatures or lattice-based cryptography).
Once the quantum-secure upgrade is live, active users will move their Bitcoin from vulnerable addresses to quantum-secure ones.
Lost coins cannot be moved since no one has the keys. These coins cannot be migrated to the new quantum-secure addresses.
According to<a href="https://u.today/michael-saylor" rel="noopener noreferrer nofollow">Saylor</a>, the Bitcoin network consensus would likely agree to freeze the old protocol after the migration deadline passes.
"I agree, lost coins should stay frozen. Glad to hear you'll support my BIP!" Casa's Jameson Lopp said in response to the recent post.
<h2 id="overblown-fears">Overblown fears</h2>
The prevailing view among institutional analysts (like Grayscale) and cryptographers is that the immediate threat is overblown.
Most experts do not see a cryptographically relevant quantum computer emerging before 2030. Grayscale explicitly called quantum fears a "red herring" for the 2026 market.
The only immediate threat is for encrypted data (like emails or government secrets) that can be harvested now and decrypted in 10 years. However, Bitcoin requires signing a transaction in real-time rather than decrypting old data.<a href="https://u.today/saylor-quantum-computing-wont-break-bitcoin" rel="noopener noreferrer nofollow">Read original article on U.Today</a>

Saylor: Quantum Computing Won't Break Bitcoin

Table of Contents

U.Today

Other articles published on Dec 17, 2025

Join our free newsletter for daily crypto updates!