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Self Custody Is Dead. Long Live Self Custody

August 4, 2026Updated:August 5, 2026No Comments7 Mins Read
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Self Custody Is Dead. Long Live Self Custody
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The Coldcard hack final week dealt a low blow to sure components of the Bitcoin trade. A somber introspection has begun to query lots of the practices and assumptions concerned in securing bitcoin at a retail stage. The results of this course of may not be seen for a lot of months. 

Some are saying that self-custody is useless. Some stories estimate that over 11,000 bitcoins had been moved to custodial exchanges final week as customers fled probably the most common {hardware} wallets within the Bitcoin trade. The hack, which is ongoing and customers can nonetheless save themselves from, has seen north of 1,300 bitcoins stolen, with some estimates as excessive as 2,000 cash. 

Coinkite particularly and its most vocal founder, NVK, had very sturdy opinions about what it took to safe bitcoin personal keys from hackers. Its {hardware} wallets had been airgapped to verify malware couldn’t exfiltrate information via USB cables. It used low-resolution, LED screens to keep away from the complexity of contact screens. It developed protocols like BBQR and built-in NFC in order that info might be transferred between the system and a pc with out them touching or sharing SD playing cards. The listing of paranoid design selections that made Coldcards iconic is lengthy.

But the hackers concerned within the theft of bitcoins held in Coldcards final week didn’t use any strategies you may see in a contemporary spy film. They exploited the one function Coldcard ought to have had completely locked down. The technology of keys with excessive sufficient randomness, also referred to as entropy. In different phrases, secrets and techniques securing which might be truly, mathematically exhausting to guess. Whereas the units had been meant to make use of high-quality sources of entropy, the firmware had a bug which didn’t, leading to Bitcoin personal keys that had been, in flip, straightforward to guess. The bug went undiscovered for years, and the product solely grew in recognition within the meantime, till final week.

“Simply purchase the ETF bro”

Regardless of this loss, which wounded a cohort of Bitcoiners who had been among the many most dedicated. Bitcoin can’t hand over on self-custody and anticipate to retain its integrity. No less than that’s what many within the trade imagine, and the case for that’s clear.

Satoshi Nakamoto’s white paper clearly meant Bitcoin to be an answer to trusted third events and intermediaries. It eloquently made the case towards trusted hierarchies of finance, because the 2008 monetary disaster revealed the deep systemic dangers and flaws legacy finance has led to. Many imagine the 2008 disaster was by no means escaped, its penalties haunting us to today. 

This can be unpopular, however we by no means escaped the 2008 monetary disaster. We simply shifted the ache.

— Nayib Bukele (@nayibbukele) July 29, 2026