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COLDCARD Predictable RNG: From Seed Recovery to About $8.86M Bitcoin Theft

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COLDCARD Predictable RNG: From Seed Recovery to About $8.86M Bitcoin Theft

COLDCARD Mk2-Mk5 RNG flaw enables offline seed reconstruction; attackers derive private keys from public addresses, stealing ~$88.6M BTC (July-August 2026). IT managers: seeds from affected firmware remain compromised post-patch, forcing emergency key rotation and entropy-strategy revision in hardware wallet deployments.

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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·coindesk.com
Major bitcoin wallet flaw drains 594 BTC in 25-minute sweep
A hardware wallet randomness bug turned “impossible to guess” seeds into guessable ones, and $38 million is already gone.

COLDCARD Predictable RNG: From Seed Recovery to About $8.86M Bitcoin Theft

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COLDCARD Predictable RNG: From Seed Recovery to About $8.86M Bitcoin Theft

Timeline cronologica

Coldcard Mk3 Warning Amid Unexplained 594 BTC Sweep

Major bitcoin wallet flaw drains 594 BTC in 25-minute sweep

COLDCARD wallet RNG flaw likely linked to $88 million Bitcoin theft

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

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

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

Coldcard exploit reignites Bitcoin self-custody debate after $38 million theft

$38M in Bitcoin Drained by Coldcard Key Flaw Its Maker Thinks AI Found - Decrypt

Coinkite reports $38M in Bitcoin drained due to Coldcard key generation flaw

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

Coldcard exploit reignites Bitcoin self-custody debate after $38 million theft

Coldcard Bug Exposes The New Reality: AI Is Auditing Every Open-Source Wallet

Bitcoin losses linked to Coldcard vulnerability grow to $70 million, Galaxy Research says

Block traces COLDCARD attacker to blockchain services provider after $38M Bitcoin theft

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

How bitcoin cold wallets lost $70 million in an attack that never touched the devices

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

Bitcoin cold-wallet attack spreads to 4,500 addresses as losses near $89 million

Galaxy Research identifies 1,367 BTC drained in attacks on Coldcard addresses

"Nothing Is 100%": CZ Warns Bitcoin Holders After $89 Million Coldcard Wallet Exploit

Coldcard Bitcoin Exploit Balloons to $88 Million as Attackers Keep Draining Wallets - Decrypt

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

COLDCARD wallet RNG flaw likely linked to $88 million Bitcoin theft

COLDCARD Predictable RNG: From Seed Recovery to About $8.86M Bitcoin Theft

Hackers exploit Coldcard firmware flaw, stealing $89 million in Bitcoin from thousands of wallets