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

CryptoInfo Editorial Team · Published on August 01, 2026 at 05:55 · 1 min read

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Key Takeaways

→Over 1,000 BTC were stolen from nearly 1,200 bitcoin cold wallets
→The attacker exploited weak seed generation to recreate private keys offline
→The estimated loss from the attack is approximately $70 million

Disclaimer: This content is provided for informational purposes only and does not constitute financial or investment advice.

A recent attack on bitcoin cold wallets resulted in the theft of over 1,000 BTC, valued at approximately $70 million, according to a report by Galaxy Research as covered by CoinDesk.

The attacker was able to exploit weak seed generation, allowing them to recreate likely private keys offline and sweep the funds from nearly 1,200 wallets without ever accessing the devices.

This type of attack highlights the importance of secure seed generation and storage for cryptocurrency wallets, as it allows attackers to target wallets without physically accessing them.

Source: CoinDesk ↗

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