Quantum Computing: A Real Threat to Crypto in 2026?

USAThu Dec 25 2025
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In 2026, quantum computing is still a hot topic in the crypto world. Some people worry it could crack the codes that protect Bitcoin and other digital currencies. Big tech companies are putting lots of money into quantum research, making this fear seem more real. But experts say don't panic just yet. Quantum computers aren't ready to break crypto anytime soon. The real problem is what hackers are doing now. They're collecting encrypted data, hoping to crack it later when quantum tech gets better. Bitcoin and other blockchains use special codes to keep transactions safe. These codes rely on something called public-key cryptography. If a quantum computer can figure out private keys from public ones, it could steal money. The weakest part of this system is something called ECDSA, which is used to sign transactions.
Despite the hype, big tech companies are still far from making a quantum computer powerful enough to break these codes. They face huge challenges in physics and engineering. Some experts even think classical computers might pose a bigger threat to crypto than quantum ones. The real danger in 2026 isn't that Bitcoin will break. It's that hackers are already gathering data to crack later. They're collecting public keys, which could be used with a quantum computer to find private keys. About 4 million Bitcoins are at risk because their public keys are already out there. To stay safe, crypto users should avoid reusing addresses and be ready to switch to quantum-resistant wallets. The crypto world isn't doomed in 2026, but the threat of quantum computing is becoming more real. The question is no longer "if" but "when. "
https://localnews.ai/article/quantum-computing-a-real-threat-to-crypto-in-2026-7728ed59

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