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233,000 Bitcoin Moved From Long-Term Holder Wallets After Coldcard Hack

Decrypt reported on Aug. 11 that an attack exploiting a Coldcard firmware vulnerability caused about $130 million in losses. Following the hack, 233,000 Bitcoin moved from long-term holder wallets.

bloomingbit

Publisher

Aug 12, 2026 at 6:50 PM UTC · 1 分で読める

233,000 Bitcoin Moved From Long-Term Holder Wallets After Coldcard Hack
Image via bloomingbit

Key Signal

$130M Coldcard attack losses

Entities

bitcoin

Last Updated

2ヶ月前

  • It said an attack exploiting a Coldcard firmware vulnerability caused about $130 million in losses.
  • It said 233,000 Bitcoin (BTC) moved from long-term holder wallets after the hack.
  • It said some of the funds were moved to multisig wallets, while others came from transfers by Ledger and Trezor users.

Forecast Trend Report by Period

Decrypt reported on Aug. 11 that an attack exploiting a Coldcard firmware vulnerability caused about $130 million in losses. Following the hack, 233,000 Bitcoin moved from long-term holder wallets.

That was more than 100 times the value of the funds stolen from Coldcard. “While hackers were attacking Coldcard, roughly $15 billion worth of Bitcoin quietly moved in search of safer storage,” the outlet wrote. Some of the transfers came from Coldcard users shifting funds to multisig wallets. Others came from Ledger and Trezor users prompted to act by the breach.

Why this matters

A firmware exploit causing reported nine-figure losses would expose material security risk in self-custody hardware and could prompt broader reviews of wallet firmware, signing practices and multisig arrangements. The reported migration of 233,000 BTC suggests the incident may affect Bitcoin liquidity and custody behavior beyond the directly compromised users, although the scale and attribution of those transfers require verification.

#bitcoin#crypto

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Originally reported by bloomingbit

NewsLayer coverage based on externally reported material.

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Key Entities

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