hardware wallet
$100M Coldcard Hack Won’t Break Bitcoin’s Rally
Bitcoin’s price has shrugged off the largest hardware wallet exploit in crypto history, with the self-custody hack draining over $100 million from Coldcard devices since late July, yet markets have remained largely unmoved. The incident—which compromised an estimated 7,300 addresses across multiple attack waves and could ultimately total $130 million in losses—has exposed a critical...
Coldcard Exploit Drains $116M Bitcoin From 5,200 Wallets in Days
An attacker has systematically drained 1,816 Bitcoin worth approximately USD 116 million from over 5,200 Coldcard hardware wallet addresses since July 30, exploiting a five-year-old firmware vulnerability that crippled the device’s random number generation. The breach, which accelerated through multiple coordinated waves of theft, exposes a critical vulnerability in the self-custody narrative that has anchored...
Coldcard Hack Exposes $130M Bitcoin Theft as Market Watches
A five-year-old vulnerability in Coldcard hardware wallets has triggered three waves of coordinated attacks over the past week, with blockchain-monitoring firms now estimating total losses at more than $130 million in Bitcoin stolen from approximately 4,585 addresses. The exploit, which affected firmware version 4.0.1 released in March 2021, compromised the wallet seed generation process on...
Coldcard Hack: $116M Bitcoin Theft Tilts Custody Debate
Bitcoin hardware wallet users suffered nearly $116 million in losses after a critical flaw in Coldcard devices enabled hackers to drain over 5,200 addresses in coordinated waves since July 30. The breach, stemming from a 2021 firmware vulnerability that generated wallet seeds with insufficient entropy, has reignited a debate within the crypto industry about the...
$86M Coldcard Hack Reignites Self-Custody Security Debate
Approximately 1,367 Bitcoin worth $86 million to $89 million has been stolen from more than 4,500 Coldcard hardware wallet users following a firmware vulnerability discovered in devices manufactured by Canada-based Coinkite Inc. The breach, which unfolded in three distinct waves beginning July 30, 2026, has reignited debate over the security trade-offs inherent in self-custody while...
$75M Coldcard Hack Exposes 2021 Firmware Flaw, Tests Bitcoin Security
A $75 million Bitcoin theft from Coldcard hardware wallets exposed a critical firmware vulnerability dating back to March 2021, prompting an emergency response from manufacturer Coinkite and raising urgent questions about the security of devices that hold custody over billions in cryptocurrency. The attack, which unfolded across two waves and involved seed compromise affecting at...