Bitcoin cold-wallet attack spreads to 4,585 addresses as losses near $88 million
first published 2026-08-01T05:55:46Z
Galaxy Research reported that a flaw in certain Coldcard hardware wallet firmware allowed an attacker to reconstruct likely private keys offline and sweep more than 1,000 BTC from 1,196 wallets in a 41-minute window on July 30. The issue reportedly reduced the seed space to a computationally enumerable range, and investigators warn more wallets may remain at risk because owners cannot reliably tell whether their seeds were generated on vulnerable firmware.
AI Analysis
The summary describes a large theft of more than 1,000 BTC from 1,196 wallets and says additional wallets may still be at risk, which is strongly negative and highly market-relevant for near-term trading.
Expected Investor Sentiment: Bearish
Potential Market Impact: High
Source Articles
- How bitcoin cold wallets lost $70 million in an attack that never touched the devices - CoinDesk
- Hong Kong crypto romance scam costs woman $3.3M - Crypto News
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- Bitcoin cold-wallet attack spreads to 4,500 addresses as losses near $89 million - CoinDesk
- Coldcard Theft Balloons to $88M as Exchange Deposits Spike, Old BTC Moves - Bitcoin.com
