ZyCrypto 2025-06-20 13:42:57

What Bitcoin Must Do to Not Get Killed by Quantum Computing in 5 Years

Quantum computing is no longer just a movie thing. It’s real. And it could break Bitcoin within five years or even sooner, some experts say. If the Bitcoin network doesn’t adapt its cryptography in time, it risks losing everything it’s built over the last 16 years. What’s Happening? Bitcoin runs on elliptic curve cryptography. That type of math protects your private key, like a digital signature only you can create. It’s what keeps your coins safe from being stolen. But quantum computers don’t play by the same rules. They can solve problems in parallel instead of one step at a time, which makes them lethal to traditional encryption. This isn’t some distant threat. Microsoft’s Majorana chip was a breakthrough. The U.S. government is preparing to go quantum-secure by 2030. There are already about 100 quantum computers in the world, and that number could hit 5,000 by the end of this decade. That’s a big problem. About 30% of all Bitcoin is sitting in old addresses that are easy pickings for quantum attacks . Hack just one high-profile wallet, and the trust in Bitcoin could collapse overnight. So, What’s Being Done About It? Not enough. Proposals like BIP-360 and other “quantum-resistant” schemes are still theoretical. Upgrading Bitcoin’s cryptography would likely require a hard fork, a major change to the network’s rules. But in Bitcoin circles, “hard fork” is almost a curse word. The community values stability over speed. It has always moved slowly, and that’s a feature, not a bug. But that same caution could be Bitcoin’s downfall. There are other ways forward: hybrid solutions, smarter key management, and layered defenses that don’t disrupt the network. They exist, but they would require a lot of real adoption. Because once “Q-Day” hits, the day quantum computers crack modern encryption, it will be too late to react.

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