Bitcoin’s 50% Drawdown ‘Priced In’ Quantum Computing Menace: Bernstein

Bernstein mentioned Monday that Bitcoin’s selloff has already priced in a lot of the market’s worry round quantum computing, arguing that the risk is actual however nonetheless manageable reasonably than a direct existential danger.

Bitcoin’s (BTC) close to 50% drawdown from its $126,198 all-time excessive in October 2025 is proof that the market has “priced in” a number of dangers tied to a quantum breakthrough, partly because of technological progress on zero-knowledge privateness and quantum-proof cryptography that “counterbalance” the AI and quantum acceleration, Bernstein mentioned in a Monday be aware shared with Cointelegraph.

The be aware lands two weeks after Google researchers mentioned future quantum computers may break the elliptic-curve cryptography used throughout many blockchains with fewer than 500,000 bodily qubits in some architectures, reviving debate over how shortly Bitcoin wants a post-quantum improve path. This analysis recommended a quantum laptop may crack a Bitcoin personal key in 9 minutes, in a theoretical situation, which is lower than Bitcoin’s 10-minute block manufacturing time.

Nonetheless, Bernstein mentioned Bitcoin core builders have “adequate time” to find out a post-quantum path. Final week, Bernstein predicted that Bitcoin has about three to 5 years to organize for a post-quantum safety improve, Cointelegraph reported on Wednesday.

Institutions will play constructive role in quantum-proofing Bitcoin

Bernstein said large institutional holders, including exchange-traded fund (ETF) issuers and corporate treasury buyers such as Strategy, are likely to play a constructive role in any eventual consensus on a post-quantum upgrade.

“We expect institutional partners with now billions at stake to play a constructive role in building consensus on the post-quantum path.”

The note also highlighted the recently introduced BIP-360 proposal and added that slower consensus from Bitcoin developers is seen as responsible behavior when it comes to a $1.5 trillion asset.

BIP-360 is a draft Bitcoin Improvement Proposal that proposes a Pay-to-Merkle-Root output type designed to reduce long-exposure quantum risk by removing Taproot’s key-path vulnerability, although it doesn’t itself add post-quantum digital signatures.

Bernstein mentioned BIP-360 might be carried out as a comfortable fork for uncovered Bitcoin addresses, however added that this might nonetheless depart round 8% of the BTC provide in inactive addresses susceptible to future quantum breakthroughs.

Associated: Bitcoiners push for quantum-resistant BIP-360 upgrade as debate heats up

Quantum-proofing Bitcoin is a social subject, not technical

The actual problem of quantum-proofing Bitcoin lies within the societal adoption component of the brand new requirements, not the technical growth, in response to Arthur Breitman, co-founder of Tezos blockchain.

“The coding work could be done this afternoon,” however Bitcoin holders would nonetheless have to migrate to this new normal, Breitman informed Cointelegraph throughout an interview at EthCC 2026.

“If Bitcoin needed to migrate in the next month, they could do it from a technical perspective […] but they can’t get everyone to migrate their key in a month, Breitman said. “It’s going to take years for people to properly migrate their keys,” he added.

Asset manager Grayscale’s head of analysis, Zach Pandl, shared the same view in a analysis report final Monday. He mentioned Bitcoin’s quantum-proofing challenges are “more social than technical,” offered that its UTXO mannequin doesn’t have native good contracts and that some deal with varieties should not quantum susceptible.

Nonetheless, he warned that the group wants to search out consensus on how you can quantum-proof wallets the place the personal key has been misplaced or is in any other case inaccessible.

Journal: AI has dramatically accelerated the quantum threat to Bitcoin: AI Eye