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Coldcard Firmware Exploit Causes Historic Drop in Bitcoin Sentiment

Coldcard Firmware Exploit Causes Historic Drop in Bitcoin Sentiment

First seen 2 Aug 2026, 08:53 UTC

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ThreatCluster AI
ThreatCluster August 3, 2026 at 06:03 UTC
  • The Coldcard exploit drained approximately 1,082 BTC, valued at $70 million.
  • Bitcoin's positive-to-negative commentary ratio fell to 0.58 bullish for every 1.00 bearish remark.
  • The exploit raises concerns about the security of cold storage solutions for cryptocurrencies.

A Coldcard firmware exploit has led to a significant decline in Bitcoin's social sentiment, marking the lowest positive-to-negative commentary ratio since tracking began. The exploit drained approximately 1,082 BTC (around $70 million) from nearly 1,200 self-custody wallets. This incident challenges the long-held belief that cold storage is a secure option for cryptocurrency holders. The exploit was traced back to a firmware build error present since version 4.0.0, released in March 2021. Following the exploit, Bitcoin's positive commentary ratio fell to just 0.58 bullish remarks for every 1.00 bearish remark. Despite the exploit, Bitcoin's price has remained relatively stable around $63,000. The incident has sparked discussions about the vulnerabilities of hardware wallets and the need for increased scrutiny of self-custody solutions. Market reactions are being closely monitored, with potential shifts in on-chain activity expected in the coming days.

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Timeline

2021-03-01
Firmware build error introduced
A firmware build error was present in Coldcard version 4.0.0, affecting device security.
Cryptopolitan
2026-07-30
Coldcard exploit occurs
The Coldcard firmware exploit resulted in the theft of approximately 1,082 BTC from nearly 1,200 wallets.
Cryptopolitan
2026-08-01
Social sentiment hits historic low
Santiment reported Bitcoin's sentiment ratio fell to the lowest level since tracking began, with fear dominating discussions.
App.Santiment
2026-08-01
Coldcard firmware patched
Coinkite released a patch for the firmware issue in version 4.21 to address the security flaw.
Cryptopolitan

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