Key facts
- The Coldcard Bitcoin hack has resulted in the theft of approximately 1,367 BTC.
- Total estimated losses from the Coldcard hack exceed $114 million.
- The exploit is attributed to a firmware flaw in Coldcard hardware wallets.
- The flaw reportedly existed for five years.
- Kraken's chief security officer, Nick Percoco, highlighted a gap in independent hardware wallet testing.
- Small Bitcoin holders are moving funds at a rate not seen since the FTX collapse.
- Bitcoin dropped below $63,000 on Monday.
- A solo Bitcoin miner earned approximately $199,300 from mining block 960,804.
- Derivatives markets show rising open interest in BTC futures.
- A bearish skew is present in BTC long-short ratios.
An ongoing exploit of Coldcard hardware wallets has led to substantial losses, with approximately 1,367 Bitcoin stolen, totaling over $114 million. This multi-day exploit, attributed to a firmware flaw that may have existed for five years, has eroded confidence in self-custody solutions within the cryptocurrency market. The situation has prompted a significant outflow of funds from smaller Bitcoin holders, with some moving their assets at a pace not observed since the FTX collapse.
Concerns have been raised regarding the security testing of hardware wallets. Nick Percoco, chief security officer at Kraken, highlighted that the Coldcard flaw reveals a gap in independent testing, urging manufacturers to ensure that approved random number generators are utilized in production firmware. The exploit has contributed to a decline in the prices of major cryptocurrencies, with Bitcoin dropping below $63,000 and Ether also falling. This market weakness occurred despite positive macroeconomic signals, such as falling oil prices and Treasury yields.
In a separate development, a solo Bitcoin miner successfully mined block 960,804, earning approximately $199,300. This event occurred amidst the broader market concern generated by the Coldcard exploit. Derivatives markets have shown mixed signals, with an increase in open interest for BTC futures but a bearish skew in long-short ratios, indicating a prevailing cautious sentiment among traders.
The exploit has led to a fourth wave of Bitcoin sweeps targeting Coldcard wallets, potentially increasing the total losses. The market's reaction underscores the sensitivity of cryptocurrency prices to security breaches affecting self-custody solutions.