Quantum computing is moving from theory to practice, and a new whitepaper warns that major cryptocurrencies need to react much faster than they have so far. The study shows that once a powerful enough quantum computer exists, it could break the cryptography behind Bitcoin, Ethereum and other chains in minutes, putting both long‑dormant and active assets at risk. Google Quantum AI released a whitepaper, warning that around 2.3 million dormant, vulnerable BTC could become a multi‑billion‑dollar prize the moment a powerful quantum machine comes online. Simply, this new research says that once powerful quantum computers ... (full story)