Bitcoin Quantum Risks Still Decades Away: Adam Back
Adam Back says Bitcoin can become quantum-resistant long before real quantum threats appear, possibly 20–40 years from now.
- Adam Back downplays near-term quantum threat to Bitcoin.
- Bitcoin can adopt quantum-resistant tech in time.
- Real quantum computers are likely decades away.
Bitcoin pioneer and Blockstream CEO Adam Back has weighed in on the growing concern about quantum computing and its potential threat to Bitcoin. In a recent comment, he reassured the crypto community that “cryptographically relevant quantum computers” are still 20 to 40 years away. This means that, while quantum computing is advancing, its real-world impact on Bitcoin’s cryptographic systems is not a near-term issue.
Bitcoin Has Time to Evolve
Adam Back emphasized that Bitcoin can become “quantum ready” long before such advanced computers become a threat. Bitcoin uses cryptographic algorithms to secure transactions and wallets, and while these could be vulnerable to powerful quantum machines, the technology to defend against such attacks is also evolving. Solutions like post-quantum cryptography are already being researched and developed.
Importantly, Bitcoin’s open-source nature and active developer community allow for gradual protocol upgrades. If quantum computing advances faster than expected, the network can implement stronger cryptographic methods, ensuring Bitcoin’s long-term security.
Quantum-Resistant Upgrades Are Inevitable
The crypto community is already exploring quantum-resistant cryptographic algorithms. Researchers are developing tools and standards that could replace current systems like ECDSA, which Bitcoin uses. These new algorithms are designed to be secure even in the face of quantum computing breakthroughs.
So while headlines may hype the “quantum threat,” experts like Adam Back remind us that Bitcoin is adaptable. The blockchain can be upgraded when the time comes, and with decades of warning, the industry has more than enough time to prepare.
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- Bitcoin Quantum Risks Still Decades Away: Adam Back
