A report by Wall Street broker Bernstein reveals that the rise of quantum computing poses a legitimate yet controllable threat to Bitcoin and the broader cryptocurrency ecosystem. Recent advancements in quantum computing have accelerated the timeline for potential attacks on modern cryptography, making the risk more imminent. However, the firm notes that scaling quantum systems to break widely used encryption remains a complex challenge.
Analysts emphasize that quantum computing should be viewed as a medium to long-term system upgrade cycle rather than an existential risk. Quantum computers, which utilize quantum mechanics and qubits, can process multiple possibilities simultaneously, making them more efficient at solving certain problems, such as breaking encryption, than classical computers.
The threat posed by quantum computing affects various industries, including finance and defense, and is considered a manageable, long-term risk for Bitcoin. The report highlights that approximately 1.7 million BTC held in older wallets are more vulnerable, while newer practices and protocols reduce exposure. Bernstein expects the crypto industry to have sufficient time, around three to five years, to transition toward post-quantum cryptography, with upgrades such as new wallet standards and key rotation already under discussion.