
Bitcoin cold wallet hack exposes five-year-old firmware flaw, drains $114M from Coldcard devices
The hack underscores the critical need for robust firmware security and may drive increased reliance on regulated Bitcoin investment vehicles.

The hack underscores the critical need for robust firmware security and may drive increased reliance on regulated Bitcoin investment vehicles.

The Coldcard hack highlights the urgent need for regulatory standards in hardware wallet security to protect investors and maintain trust.
The Bitcoin Red Team filed 4,962 security findings across 390 projects in 30 hours after the Coldcard hack.

The Coldcard vulnerability underscores the critical need for robust security audits in open-source projects to prevent significant financial losses.

Bitcoin Magazine The End of the Closed-Source Era Is at Hand: Obscurity Was Never Security The Coldcard hack is a preview. When machines can read what humans couldn't (or just didn't), closed source stops being a category. This post The End of the Closed-Source Era Is at Hand: Obscurity Was Never Security first appeared on Bitcoin Magazine and is written by Colin Crossman .

A week-long streak of inflows into US spot Bitcoin ETFs has coincided with the Coldcard wallet exploit, fueling debate over whether some investors are shifting away from self-custody.

Bitcoin Magazine Bitcoin ETF Inflows Surge Following $130M Coldcard Hack Could investors be moving their funds from cold storage to exchange-traded funds managed by the likes of BlackRock following the massive Coldcard exploit? This post Bitcoin ETF Inflows Surge Following $130M Coldcard Hack first appeared on Bitcoin Magazine and is written by Mathew Di Salvo .

The exploit highlights the critical need for robust security measures in crypto storage, potentially driving investors toward regulated custody solutions.
As a $116 million Coldcard flaw shatters self-custody trust, Bitcoin ETFs absorb $620 million in Wall Street inflows.

The Coldcard hack highlights the vulnerability of self-custody, prompting a shift towards perceived safer investment vehicles like Bitcoin ETFs.

Canadian Bitcoin holders account for 25% of all attributable losses in the Coldcard wallet exploit. Total stolen assets reach $116 million while Galaxy Research traced the attack to a March 2021 firmware update. Geographic Distribution of Losses Canadian bitcoin holders have emerged as the single largest demographic affected by the ongoing Coldcard hardware wallet exploit, […]

Hackers behind the Coldcard exploit transferred millions in digital assets to cryptocurrency mixers, while most stolen funds remained traceable in attacker-controlled wallets.

A single line of firmware shipped in March 2021 told every Coldcard hardware wallet to skip its dedicated randomness chip. For five years nobody noticed. Then an attacker brute-forced the weak seeds in 41 minutes, draining 1,816 BTC from more…

A volunteer Bitcoin security initiative has identified 4,962 potential security issues across 390 Bitcoin-related projects during its first 29.8 hours of AI-assisted code reviews, with 720 classified as high or critical severity. According to Bitcoin developer Calle, the Bitcoin Red…
South Korea’s Bitcoin community emerged almost untouched from the Coldcard hardware wallet exploit, despite counting many device owners among its most experienced holders. An analyst attributes that resilience to cultural habits rather than technical luck, and the lessons apply well beyond Korea. The Practices That Kept Korean Holders Safe Entropy refers to the randomness used

Most of the Bitcoin stolen through the COLDCARD wallet flaw remains unmoved, but on-chain investigators have detected a separate attacker beginning to route smaller amounts through a mixer. COLDCARD attacker leaves 1,159 BTC untouched Galaxy Research said the largest known…

Bitcoin Magazine Bitcoin Red Team Finds 85 Critical Flaws Across 390 Open Source Repos After Coldcard Exploit Triggered by the Coldcard RNG vulnerability that drained over $100 million, the Bitcoin Red Team led by Calle and Rob Hamilton has already filed 4,962 findings across 390 open-source projects using frontier AI models. This post Bitcoin Red Team Finds 85 Critical Flaws Across 390 Open Source Repos After Coldcard Exploit first appeared on Bitcoin Magazine and is written by Juan Galt .

Paranoid Bitcoiners are worried that the Blockclock, created by Coinkite, the firm behind Coldcard, could be spying on them.


The Coldcard exploit has unleashed a wave of bitcoin movement, sending dormant coins into exchanges, multi-signature wallets, and new addresses while the market price barely reacts. Coldcard Panic Breaks Through a Quiet Market In a recent research report called “Textbook summer doldrums,” K33 Head of Research Vetle Lunde identified onchain transfers as the glaring exception […]