Billionaire investor Tim Draper claims that fears over the Bitcoin quantum risk have been misinterpreted, and Bitcoin is even more protected than traditional banks regarding quantum threats in the future. He further explains that, according to him, the quantum risk is more threatening to banks than Bitcoin because the quantum computer will not crack the blockchain.
He noted that large banking systems would be susceptible to quantum-based attacks at a higher rate than decentralized blockchain systems.
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Bitcoin Quantum Concerns: Why Banks May Be at Higher Risk
According to Draper, the debate about Bitcoin quantum threats has concentrated on Bitcoin without recognizing the dangers within the banking systems across the globe.
Quantum computers will “crack into the banks well before they ever crack into the blockchains,” he explained.
In his view, banks have to use layers of cryptography in the payment process, bank account management, financial trading, settlement processing, and internal communications. Some of those systems utilize old software that has gone through several upgrades and improvements over many years of work by many companies and financial institutions.
The interconnected nature of this broad network system, says Draper, makes banks more vulnerable to quantum attacks than Bitcoin.
Data Exposure and the “Harvest Now, Decrypt Later” Risk
Security experts have raised concerns about something called “harvest now, decrypt later,” where hackers hold onto encrypted banking information, expecting to be able to decipher it someday using quantum computing technology.
Should such technology come into existence, all their sensitive information collected over many years will become exposed at once.
This is compared by Draper to the Bitcoin quantum security, since Bitcoin transactions have been publicly recorded on the blockchain. There is no secret pool of information waiting to be revealed at a later date, which removes one element of danger for the future.
Can Bitcoin Quantum Threats Be Managed Over Time?
Draper also mentioned that even if such risks as Bitcoin quantum would occur in the future, they could be countered by upgrading Bitcoin’s network. But this theory is highly controversial among crypto experts.
Jameson Lopp, the Chief Security Officer of Casa, has earlier observed that switching Bitcoin to quantum-safe cryptography might take a very long time. While banks can ensure upgrades using their central infrastructure, Bitcoin relies on collaboration among developers, miners, and node operators from across the globe.
This adds to the difficulty of implementing any major upgrade, regardless of the urgency.
The U.S. National Security Agency (NSA) has already directed its national security systems to migrate to quantum-resistant encryption methods by 2027, demonstrating the seriousness with which the government considers the implications of quantum computing.
Although there is disagreement about the exact timeframe, Draper continues to be optimistic that the quantum resistance of Bitcoin will fare better than the existing banking system. He argues that owing to its simplicity, Bitcoin will be able to adjust more quickly to changes brought about by quantum computers than other systems.
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