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The Coldcard Exploit Explained: Who Lost Bitcoin and Who's at Risk

A Coldcard firmware flaw weakened bitcoin seeds, exposing up to $70 million and forcing users to move funds.

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news.bitcoin.comStai leggendo3 g fa

The Coldcard Exploit Explained: Who Lost Bitcoin and Who's at Risk

Coldcard Mk3 RNG bug reduced seed entropy from 128 to 40 bits, enabling $70M theft from 1,196 wallets on July 30. Hardware isolation failed to protect: affected seeds are permanently weak and require complete regeneration—firmware updates alone won't restore security.

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venerdì 31 luglio 2026·cointelegraph.com
Coldcard Mk3 Warning Amid Unexplained 594 BTC Sweep
Bitcoin security experts said the unexplained $38 million wallet drain may involve flawed seed-generation entropy, though the cause and any Coldcard link remain unconfirmed.
venerdì 31 luglio 2026·theblock.co
'Funds may be at risk': Coinkite issues warning for Coldcard Mk3 users amid 594 BTC theft reports
Coinkite recommends that Mk3 users create a strong, unique BIP-39 passphrase on the device and move funds to the resulting wallet.

The Coldcard Exploit Explained: Who Lost Bitcoin and Who's at Risk

Confronto fonti

The Coldcard Exploit Explained: Who Lost Bitcoin and Who's at Risk

Timeline cronologica

Coldcard Mk3 Warning Amid Unexplained 594 BTC Sweep

'Funds may be at risk': Coinkite issues warning for Coldcard Mk3 users amid 594 BTC theft reports

Coldcard Wallet Flaw Exposes Years Of Bitcoin Seeds After $70M In BTC Stolen

A Coldcard firmware flaw let hackers drain $70 million in Bitcoin in 41 minutes, with losses now topping $88…

Coldcard Mk3 Warning Amid Unexplained 594 BTC Sweep

Coldcard Hardware Wallet Flaw Linked to $70 Million Bitcoin Theft in 41 Minutes

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The Coldcard Exploit Explained: Who Lost Bitcoin and Who's at Risk

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