Bitcoin-Sicherheit

Google Warns That Quantum Armageddon Is Drawing Closer — Here’s What It Means for Your Crypto TL;DR Google has issued a warning that quantum computing poses an increasingly real and near-term threat to existing cryptographic systems — a scenario the crypto community is calling “Quantum Armageddon.” The Reddit post alerting the crypto community generated 242 upvotes and 116 comments, signaling genuine concern among investors and developers alike. Bitcoin, Ethereum, and virtually every blockchain relying on classical cryptography could eventually be cracked by a sufficiently powerful quantum computer. A handful of projects — including QAN Platform and Quantum Resistant Ledger (QRL) — are already building quantum-resistant alternatives. The question isn’t if this matters, but how much time we have. ...

Quantum Computers Could Break Bitcoin’s Encryption Sooner Than Anyone Expected TL;DR A viral Reddit discussion in r/CryptoCurrency is sparking fresh alarm about quantum computing’s threat to today’s encryption standards — including the cryptography protecting Bitcoin and other digital assets. The community consensus is clear: the timeline for “quantum supremacy” over current encryption may be significantly shorter than the crypto industry has been comfortable assuming. If you hold crypto, run a node, or work in fintech, this isn’t a distant hypothetical anymore. The window to prepare may be closing faster than expected. ...

Bitcoin vs. Quantum Computers: Why 1.9 Billion Qubits Stands Between Now and Crypto’s Biggest Fear TL;DR A viral Reddit discussion in r/CryptoCurrency is making the rounds, and the headline number is striking: breaking Bitcoin’s cryptographic security would require approximately 1.9 billion qubits. The best quantum computers publicly available today — including IBM Quantum’s cutting-edge processors — operate at only a few thousand qubits. That’s a gap of roughly six orders of magnitude. So while the quantum threat to Bitcoin is real in theory, the timeline for it becoming a practical danger is far longer than most headlines suggest. The community is divided, though, on whether “far away” means “not worth worrying about.” ...