The fear of a quantum computing breakthrough is no longer just a shadow over the market, it is already baked into the price. On Monday, Bernstein released a note arguing that Bitcoin’s (BTC-USD) recent struggle to reclaim its $126,198 peak is proof that investors have already accounted for the risk of future tech breakthroughs.
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While the threat is real, Bernstein believes it is a manageable challenge rather than an immediate disaster. The firm noted that technological progress in other areas, like zero-knowledge privacy, helps to “counterbalance” the acceleration of AI and quantum power.
Institutional Ownership Provides a Quantum Shield
One of the most significant changes in the Bitcoin landscape since the last quantum scare is the high level of institutional ownership. Today, billions of dollars are held by massive companies through ETFs and corporate treasuries.
Bernstein expects these heavy hitters to lead the charge in making the network secure. The firm stated, “We expect institutional partners with now billions at stake to play a constructive role in building consensus on the post-quantum path.” Unlike the early days of the network, professional partners like Strategy (MSTR) have a massive financial incentive to ensure the network stays unhackable.
Developers Are Already Testing a Potential Fix
Developers are already testing a potential fix called BIP-360. This proposal introduces a new way to store coins called “Pay-to-Merkle-Root” (P2MR). It is designed to remove a specific vulnerability found in Taproot addresses that could be exposed by quantum computers.
Implementing this proposal as a soft fork could protect the majority of the network. However, a significant catch remains: roughly 8% of the BTC supply sits in inactive or lost addresses. These ghost coins would remain vulnerable because their owners are not around to migrate them to the new, safer standard.
Social Issues Stall the Migration
The real hurdle is not just writing the code but getting people to use it. Arthur Breitman, co-founder of the Tezos blockchain, explained during an interview at EthCC 2026 that the technical work is the easy part. He told Cointelegraph that “the coding work could be done this afternoon,” but warned that “it’s going to take years for people to properly migrate their keys.”
Grayscale’s head of research, Zach Pandl, shared this view by stating that Bitcoin’s challenges are “more social than technical.” The community must eventually decide what to do with vulnerable, inaccessible coins, whether to burn them, limit their spending rate, or do nothing. Bernstein predicts a three to five year window before a real security upgrade is mandatory, meaning the conversation is moving from “if” to “how fast.”
At the time of writing, Bitcoin’s price is sitting at $71,934.51.
