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The quantum threat is what's keeping "smart money" away, acording to BlackRock. why is Bitcoin doing nothing?

0
Medium
Security-newscybersecurityreddit
Published: 07/21/2026 (07/21/2026, 19:41:46 UTC)
Source: Reddit Cybersecurity

Description

BlackRock's Head of Digital Assets Research highlights that concerns about quantum computing threats are significantly slowing institutional adoption of Bitcoin. Bitcoin's transition to quantum-resistant cryptography is still in early stages, with no activated solutions yet. Unlike other systems that can rotate cryptographic keys easily, Bitcoin faces challenges due to millions of coins held in addresses vulnerable to quantum attacks and the need for individual owners to act to migrate. The timeline for addressing this quantum threat may be problematic given the long lead times required for consensus changes in Bitcoin.

Reddit Discussion

r/cybersecurity·posted by u/NoUnderstanding6021
00

I just watched a podcast episode where BlackRock's Head of Digital Assets Research (Will Su) said the quantum threat is a factor holding back Bitcoin adoption at the institutional level.

From his words, "some of the folks that would've certainly come in to engage with Bitcoin have probably held back a bit because of this quantum question," and when the host asked whether the concern is "meaningfully affecting adoption," his answer was: "Yes. 100%."

What strikes me from a security perspective is that Bitcoin's quantum migration path is still in early stages. NIST has finalized its PQC standards and other systems are already planning transitions, but Bitcoin has nothing activated yet.

The furthest along is BIP 360, but it feels like not much is happening to implement that either. And unlike TLS, where you rotate certs and move on, Bitcoin has millions of coins sitting in exposed-pubkey addresses that can't migrate without each owner acting, plus lost coins that never will.

So my question is: given the harvest-now-decrypt-later dynamic and the long lead time any consensus change needs, is the timeline already a problem? Or is the CRQC horizon far enough out that waiting is defensible?

Any thoughts? Am I missing something?

This is the episode: https://youtu.be/Puv7Yyymy6M

Links cited in this discussion

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/21/2026, 19:50:26 UTC

Technical Analysis

The quantum computing threat is cited by BlackRock as a major factor deterring institutional investors from engaging with Bitcoin. Bitcoin currently lacks an activated quantum-resistant cryptographic solution, with only proposals like BIP 360 in early development and no widespread implementation. This contrasts with other systems such as TLS that can more readily transition to post-quantum cryptography. Bitcoin's structure, involving many coins in addresses with exposed public keys, complicates migration to quantum-safe algorithms, requiring individual action by coin holders. The concern is that the harvest-now-decrypt-later attack model and the slow consensus change process may create a security risk if quantum computing capabilities advance faster than Bitcoin's migration.

Potential Impact

The impact is primarily on Bitcoin's institutional adoption and long-term security posture. The quantum threat creates uncertainty and risk that may delay or reduce investment and engagement by large financial entities. There is no immediate exploitation reported, but the potential future risk of quantum attacks on Bitcoin's cryptography could compromise coin security if migration to quantum-resistant algorithms is not completed in time.

Mitigation Recommendations

No official patch or activated quantum-resistant solution currently exists for Bitcoin. The community is in early stages of developing proposals such as BIP 360. Given the decentralized nature of Bitcoin, mitigation requires coordinated consensus changes and individual coin holders migrating their coins to quantum-resistant addresses. Stakeholders should monitor developments in post-quantum cryptography standards and Bitcoin improvement proposals. Patch status is not yet confirmed — check Bitcoin community advisories for current remediation guidance.

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Technical Details

Source Type
reddit
Subreddit
cybersecurity
Reddit Score
0
Discussion Level
minimal
Content Source
reddit_link_post
Post Type
link
Domain
null
Newsworthiness Assessment
{"score":27,"reasons":["external_link","established_author","very_recent"],"isNewsworthy":true,"foundNewsworthy":[],"foundNonNewsworthy":[]}
Has External Source
true
Trusted Domain
false

Threat ID: 6a5fcd741010f89cc211a5e2

Added to database: 07/21/2026, 19:50:12 UTC

Last enriched: 07/21/2026, 19:50:26 UTC

Last updated: 07/21/2026, 22:22:08 UTC

Views: 7

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