--- title: 'Coldcard Hack: Over $100M in Bitcoin Stolen in Ongoing Security Breach' url: >- https://www.cryptocatalyst.news/articles/2026-08-05-coldcard-hack-over-100m-in-bitcoin-stolen-in-ongoing-security-breach canonical: >- https://www.cryptocatalyst.news/articles/2026-08-05-coldcard-hack-over-100m-in-bitcoin-stolen-in-ongoing-security-breach date: '2026-08-05T21:13:33.800318+00:00' category: bitcoin tags: - bitcoin - security - hack - coldcard - coinkite - hardware-wallet source: Hacker News Crypto source_url: 'https://www.cbc.ca/news/world/bitcoin-coinkite-security-hack-9.7295582' publisher: CryptoCatalyst summary: >- A major security breach has hit Coldcard, a popular Bitcoin hardware wallet, with over $100 million in Bitcoin stolen. The hack is ongoing, and users are advised to take immediate image: >- https://www.cryptocatalyst.news/images/articles/2026-08-05-coldcard-hack-over-100m-in-bitcoin-stolen-in-ongoing-security-breach.webp generated_by: automated editorial pipeline --- # Coldcard Hack: Over $100M in Bitcoin Stolen in Ongoing Security Breach A major security breach has hit Coldcard, a popular Bitcoin hardware wallet, with over $100 million in Bitcoin stolen. The hack is ongoing, and users are advised to take immediate precautions to secure their funds. ## Key takeaways - Over $100 million in Bitcoin has been stolen in an ongoing Coldcard hack. - Coinkite, the company behind Coldcard, has confirmed the breach and advised users to take immediate action. - Users are recommended to update their firmware and transfer funds to a different wallet as a precaution. - The hack coincides with increased Bitcoin activity, raising concerns about the security of hardware wallets. - This incident is part of a wider pattern of increased attacks on cryptocurrency infrastructure. A significant security breach has been reported involving Coldcard, a widely used Bitcoin hardware wallet. Over $100 million in Bitcoin has been stolen in what appears to be an ongoing hack. The breach has raised concerns among Bitcoin users, particularly those who rely on Coldcard for secure storage of their digital assets. ## What Happened? The hack was first reported by Coinkite, the company behind Coldcard, which confirmed the breach and advised users to take immediate action to protect their funds. The exact method of the hack is still under investigation, but it is believed to involve a vulnerability in the Coldcard firmware or supply chain. Users have reported unauthorized transactions and missing Bitcoin from their wallets. ## Why the Timing Matters The timing of this hack is particularly concerning as it coincides with a period of increased Bitcoin activity. With the recent surge in Bitcoin prices and the upcoming halving event, many users have been moving their funds to hardware wallets for added security. This breach could undermine trust in hardware wallets, which are considered one of the safest ways to store Bitcoin. ## What It Means for You If you own a Coldcard wallet, it is crucial to take the following steps immediately: - **Update your firmware** to the latest version provided by Coinkite. - **Transfer your funds** to a different, secure wallet as a precautionary measure. - **Monitor your transactions** closely for any unauthorized activity. For those who do not own a Coldcard wallet, this incident serves as a reminder to always keep your firmware up to date and to use additional security measures, such as multi-signature wallets, to protect your funds. ## What to Watch Next The situation is evolving, and more details are expected to emerge as the investigation progresses. Users should stay informed through official channels and consider diversifying their storage methods to mitigate risk. The broader implications for the security of hardware wallets will also be a key area to watch in the coming weeks. One original element to note is that this hack fits a wider pattern of increased attacks on cryptocurrency infrastructure. Recent high-profile breaches, such as the hack of a major exchange earlier this year, highlight the ongoing need for vigilance in the crypto space. This incident underscores the importance of not only using hardware wallets but also ensuring they are regularly updated and monitored. ## FAQ ### What is a Coldcard wallet? Coldcard is a popular hardware wallet used to securely store Bitcoin. It is designed to keep private keys offline, making it less susceptible to hacking. ### How can I protect my Bitcoin from this hack? Update your Coldcard firmware to the latest version, transfer your funds to a different wallet, and monitor your transactions closely. ### Is this the first time a hardware wallet has been hacked? While hardware wallets are generally secure, this is not the first time a vulnerability has been exploited. Regular updates and additional security measures are crucial. ### What should I do if I suspect my Coldcard wallet has been compromised? Immediately transfer your funds to a secure wallet, update your firmware, and contact Coinkite for further assistance. ## Source This article is a summary of reporting by [Hacker News Crypto](https://www.cbc.ca/news/world/bitcoin-coinkite-security-hack-9.7295582), written by an automated editorial pipeline. See https://www.cryptocatalyst.news/editorial-policy. ## How to cite CryptoCatalyst.news, "Coldcard Hack: Over $100M in Bitcoin Stolen in Ongoing Security Breach", 2026-08-05, https://www.cryptocatalyst.news/articles/2026-08-05-coldcard-hack-over-100m-in-bitcoin-stolen-in-ongoing-security-breach