Quantum computing’s threat to Bitcoin has made a Wall Street strategist step away from Bitcoin, insisting the technology is not far away from bringing down the security protocols used by blockchain ...

For years, the conversation around quantum computing and cryptocurrency has been dominated by a single, breathless question: Will a quantum breakthrough kill Bitcoin? The fear is simple enough.

Recent breakthroughs in quantum computing have led market commentators to, once again, claim that Bitcoin’s future is under threat. Google’s Willow quantum chip and its ability to significantly reduce ...