Still, it would be naive to think Bitcoin is entirely invulnerable to outside threats. In fact, one in particular that gets too little attention now looms larger than ever: quantum technologies.

Once quantum computers mature, they could crack Bitcoin’s ECDSA signatures, threatening over $1 trillion in value. Both require disruptive solutions, hard forks or complex hybrid ...

The Quantum Computing Threat to Bitcoin Is Real -- and Coming Fast June 11, 2025 — 08:21 am EDT Written by Emma Newbery for The Motley Fool -> Crypto investors are accustomed to volatility risk.

For example, researchers at the University of Kent say that upgrading to post-quantum cryptosystems could take 75 days of downtime -- or over 300 days if the Bitcoin network operated at 75% capacity.

Without public progress on large-scale quantum computers, the Bitcoin community might not realize the threat until significant damage occurs, leaving a “crater the size of New York,” as ...

Aggarwal was forced to conclude the threat of future quantum computers to Bitcoin was real, and the danger could not be ignored. Others still insist that the quantum computer threat is hype.

Threat of Quantum Computing to Bitcoin Should be Taken Seriously, But there’s Enough Time to Upgrade Current Security Systems, Experts Claim November 7, 2020 @ 11:07 am By Omar Faridi ...

In light of that, I also spoke to several cryptographers at Crypto 2017 to get a sense of the threat quantum computing posed to Bitcoin's digital signatures. Nobody seemed too concerned.

Still, it would be naive to think Bitcoin is entirely invulnerable to outside threats. In fact, one in particular that gets too little attention now looms larger than ever: quantum technologies.