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Bitcoin cold-wallet losses may near $114 million as possible fourth sweep emerges

The pending transactions signal replace-by-fee, so anyone who spots their address in the mempool has minutes to pay a higher fee and move funds first.

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coindesk.comStai leggendo17 h fa

Bitcoin cold-wallet losses may near $114 million as possible fourth sweep emerges

Coldcard firmware bug (March 2021) enabled $114M theft from 5,200+ single-key addresses; fourth sweep wave uses replace-by-fee, allowing victims to outbid. Single-key wallet supply-chain risk reshapes enterprise crypto-custody decisions; multisig setups remain unaffected.

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venerdì 31 luglio 2026·bitcoinmagazine.com
Coldcard Wallet Flaw Exposes Years Of Bitcoin Seeds After $70M In BTC Stolen
Over $70 million in Bitcoin has been pinched. Coldcard has since urged its users to take precautions.
venerdì 31 luglio 2026·theblock.co
Bitcoin losses linked to Coldcard vulnerability grow to $70 million, Galaxy Research says
Galaxy said nearly 1,200 addresses were drained of more than 1,000 BTC worth roughly $70 million tied to a Coldcard vulnerability.

Bitcoin cold-wallet losses may near $114 million as possible fourth sweep emerges

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Bitcoin cold-wallet losses may near $114 million as possible fourth sweep emerges

Timeline cronologica

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

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

Coldcard Thefts Near $114 Million as Fourth Attack Wave Hits | The Defiant

Coldcard Bitcoin Theft Continues, Estimated Over $114 Million Stolen

Coldcard Likely 4th Attack Wave Sweeps Nearly 389 BTC: Galaxy

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

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

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

Galaxy Maps Coldcard Bitcoin Losses After Wallet Incident

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

Coldcard Theft Balloons to $88M as Exchange Deposits Spike, Old BTC Moves

Coldcard Hack Expands as Bitcoin Losses Reach $88.6M

"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

Coldcard Likely 4th Attack Wave Sweeps Nearly 389 BTC: Galaxy

Bitcoin Worth $86 Million Stolen From Coldcard Crypto Wallets, Company Halts Shipments, Destroys Remainin

Bitcoin cold-wallet losses may near $114 million as possible fourth sweep emerges

Coldcard hack steals $86 million in bitcoin from more than 4,500 wallets

Coldcard Bitcoin Theft Continues, Estimated Over $114 Million Stolen

Coldcard Losses Near $114M As Small Bitcoin Transfers Spike

Coldcard Thefts Near $114 Million as Fourth Attack Wave Hits | The Defiant