{
  "id": 18086,
  "title": "Coldcard Hardware Wallet Flaw Linked to $70 Million Bitcoin Theft in 41 Minutes",
  "url": "https://urgent.news/2026/08/01/coldcard-hardware-wallet-flaw-linked-to-70-million-bitcoin-theft-in",
  "topic": "science",
  "section": "Science",
  "published": "2026-08-01T17:17:22.000Z",
  "source": {
    "name": "The Hacker News",
    "slug": "the-hacker-news",
    "url": "https://thehackernews.com/2026/08/coldcard-hardware-wallet-flaw-linked-to.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "An attacker drained 1,196 Bitcoin addresses in 41 minutes on July 30, taking 1,082.65 BTC worth about $70.2 million at the time. Galaxy Research mapped the sweep and tied it to a firmware flaw in Coldcard, the Bitcoin-only hardware wallet made by Canadian firm Coinkite. A March 2021 firmware integration error routed seed generation to a deterministic software pseudorandom number generator (PRNG",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 4,
    "also_reported_by": [
      {
        "outlet": "CoinDesk",
        "title": "Coldcard's $38 million (so far) exploit shakes faith in self-custody, may push investors to ETFs",
        "url": "https://urgent.news/2026/07/31/coldcards-38-million-so-far-exploit-shakes-faith-in-self-custody-may",
        "published": "2026-07-31T17:07:30.000Z"
      },
      {
        "outlet": "Cointelegraph",
        "title": "Coldcard Bitcoin loss estimate rises to $70M after Galaxy analysis",
        "url": "https://urgent.news/2026/08/01/coldcard-bitcoin-loss-estimate-rises-to-70m-after-galaxy-analysis",
        "published": "2026-08-01T09:23:56.000Z"
      },
      {
        "outlet": "Slashdot",
        "title": "Recovery Seeds Reportedly Breached for Coldcard Hardware Bitcoin Wallets, $75M Taken",
        "url": "https://urgent.news/2026/08/02/recovery-seeds-reportedly-breached-for-coldcard-hardware-bitcoin",
        "published": "2026-08-02T01:48:00.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}