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  "path": "/quantum-threat-lingers-over-legacy-btc-as-ark-flags-structural-tail-risk/",
  "publishedAt": "2026-03-12T15:15:32.000Z",
  "site": "https://crypto.news",
  "tags": [
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    "Ark Invest",
    "Bitcoin",
    "DeFi"
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  "textContent": "Ark Invest and Unchained say about 34.6% of Bitcoin—mainly early, reused and Taproot addresses—could be vulnerable if future quantum computers crack today’s cryptography. Roughly one-third of all Bitcoin (BTC) in circulation could still be vulnerable if future quantum computers break…",
  "title": "Quantum threat lingers over legacy BTC as Ark flags structural tail risk"
}