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CryptoMediumUpdated×2•Originally published 4 August 2026•Updated 4 August 2026•
1 min read

Coldcard Wallet Losses Surpass $114M as Fourth Attack Wave Hits

Key Facts

1A fourth wave of sweeps on Coldcard wallets resulted in the theft of an additional 449 BTC on Monday.
2Confirmed losses have surpassed $100 million, with Galaxy Research warning total losses could reach $130 million.
3The exploit targets a firmware flaw introduced in March 2021 that remains active.

Amid escalating concerns over the security of self-custody solutions, Coldcard hardware wallets were targeted by a fourth wave of attacks resulting in the theft of an additional 449 BTC on Monday. According to reports, confirmed losses from these exploits have surpassed $100 million, while Galaxy Research warns that total stolen funds could reach $130 million. The root cause is traced back to a firmware flaw introduced in March 2021 that remains an active threat to exposed devices.

The breaches stem from a vulnerability in the generation of cryptographic seeds, allowing attackers to pre-compute and drain hundreds of digital addresses. The exploit primarily affected versions that failed to update firmware over several years, marking one of the largest heists involving hardware wallets. These incidents are placing significant pressure on investor confidence in cold storage solutions, despite the relative resilience of broader crypto asset prices in global markets.

However, traders should monitor upcoming security patches and manufacturer updates to mitigate further risks. The market is also looking toward key economic catalysts, including Japan’s Consumer Confidence index and GDP growth rates from France and Spain scheduled for release on July 30, 2026.