I recently heard a somewhat sobering perspective: the development of quantum computing may be redefining the security boundaries of Bitcoin. David Duong, the head of research at a compliance platform, recently issued a warning — as quantum technology accelerates, Bitcoin's long-term security has entered an "unknown territory."

The digital landscape is in front of us: the current crypto market size is about $3.3 trillion, but awareness of quantum computing risks is clearly insufficient. What is the most concerning? About one-third of the Bitcoin supply has exposed wallet public keys, which could face structural risks of being brute-forced by quantum computers to reveal private keys in the future. It sounds like science fiction, but the threat is gradually evolving from theory into a real danger.

Many people are concerned about how quantum computing will affect mining efficiency, but Duong points out that the real core risk lies in the security of digital signatures. Once quantum computers gain enough computing power, attackers could reverse-engineer private keys from public keys, directly stealing Bitcoin assets. This is not a question of whether it can be defended against, but whether it can be computed at all.

Even more concerning, institutions like BlackRock have explicitly listed quantum computing risks in their Bitcoin ETF filings. Some researchers even estimate that this threat could genuinely jeopardize Bitcoin's cryptographic system within 4-5 years. Whether you believe it or not, the countdown for this race has already begun.