Reflections After the Coldcard Incident: Why Did Korean Users Escape Unscathed While the English-Speaking Community Suffered Heavily?

marsbitPublished on 2026-08-05Last updated on 2026-08-05

Abstract

An incident involving a security flaw in Coldcard hardware wallets revealed a stark contrast in outcomes between the Korean and English-speaking Bitcoin communities. While many experienced users in the English-speaking world suffered significant losses, the Korean Bitcoin community reportedly avoided any direct financial impact. This divergence is attributed not to a gap in technical skill, but to deeper structural issues within the communities. Korean influencers and leaders strongly advocated for secure self-custody practices, specifically urging users to generate their seed phrases manually (e.g., by rolling physical dice) rather than relying on any wallet manufacturer's random number generator. This "don't trust, verify" approach was widely adopted, protecting users. In contrast, the English-speaking community saw its discourse and trust influenced by prominent influencers and podcasters who often had sponsorship ties or personal relationships with Coldcard's parent company, Coinkite. This created a "reverberation chamber" effect, where overconfidence in the product's security was amplified, leading followers to overlook potential risks. The incident underscores a critical need to extend Bitcoin's core principle of "Don't Trust, Verify" beyond code to the consumption of information itself. It highlights the dangers of over-reliance on influencers and the importance of maintaining neutrality by critically assessing the financial and relational biases of information sour...

Original Title:How Korean Bitcoiners Survived Coldcard—and Issues It Revealed for the Rest of Us

Compiled by:PANews Big Pliers

Introduction

The Coldcard hardware wallet security incident that erupted over the weekend has sent huge shockwaves through the entire Bitcoin industry, with aftershocks still ongoing. The English-speaking community suffered heavy losses, while the Korean Bitcoin community, with its large number of Coldcard users, reported almost zero losses. Is this a gap in technical capability, or a deeper structural problem?

Japanese Bitcoin practitioner Koji Higashi, by comparing the responses of the two communities, provides a deep analysis of the English-speaking community's over-reliance on influencers, lack of neutrality, and 'echo chamber' effects, calling for the extension of the 'Don't Trust, Verify' principle from code to information filtering.

This article is not just a post-mortem of an incident, but an important reflection on the health of the Bitcoin community ecosystem.

Full translation as follows:

The Coldcard incident last weekend delivered a massive shock to the entire Bitcoin industry, and the dust has not yet fully settled.

While I was fortunate not to be directly affected myself, considering the damage it caused and its potential negative impact on Bitcoin's future, this incident also touched me emotionally.

Amidst all this, I heard some interesting things from the Korean Bitcoin community about how they handled the Coldcard incident, which I think is worth sharing (thanks to @atomic for the information).

In short, despite Korea having many Coldcard users, there were zero reported cases of direct Bitcoin losses locally. They handled the situation brilliantly.

In contrast, a notable characteristic of this incident is that many victims came from the English-speaking community—those who are actually quite knowledgeable about Bitcoin self-custody.

So, why was the Korean Bitcoin community able to weather this crisis safely?

I believe it's not just a matter of technical proficiency or level of Bitcoin understanding. It points to a problem that has been worsening in the Bitcoin space for some time: a lack of neutrality and an excessive reliance on influencers.

Using the Korean success case as an example, I'd like to point out some structural issues I've observed specifically within the English-speaking Bitcoin community.

The Korean Bitcoin Community's "Obsession" with "Air-Gapped Self-Custody"

As those in the know are aware, the Korean Bitcoin community has an extraordinary passion for self-custody and hardware wallets, especially the air-gapped feature (i.e., encrypted wallets not connected to the internet or wireless communication).

Because of this, Coldcard, as one of the earliest products offering air-gapped functionality, was extremely popular among Korean Bitcoin veterans. Up until the incident, there was clearly a significant user base locally.

Hearing this, you might think many Korean users suffered direct losses in this Coldcard incident. But the reality is, according to local insiders, almost no users in Korea were affected.

Why?

It turns out, leaders and influencers in the Korean community had been strongly advocating for the "correct" way of self-custody.

In the context of this incident, they advised users not to trust the random number generation of any specific manufacturer's wallet, but to more securely generate seed phrases by rolling physical dice themselves. And crucially, it seems many users actually followed this advice.

This is an impressive case. It's extremely rare to find a community with such a high level of self-custody understanding who actually put it into practice.

Blind Spots and Bias: How Influencers Amplify Risk

On the other hand, why were the losses so severe in the English-speaking community, where information should be more abundant?

As some have already pointed out, I too feel that one reason the damage was so widespread is the excessive trust some English-speaking influencers and podcasters placed in Coldcard.

Please don't misunderstand: I don't doubt that the vast majority of influencers are well-intentioned and strive to share as accurate information as possible. In that sense, it's unfair to place all the blame for fund losses solely on the influencers who recommended Coldcard.

At the same time, whether they realized it or not, a significant number of influential influencers and podcasters in the English-speaking world had received sponsorships from Coldcard, or had personal relationships with the team. Furthermore, their alignment with the Coinkite team's "Bitcoin-only" ethos likely skewed their objective evaluation and judgment of the product.

As a result, influential community leaders in the English-speaking world developed excessive trust in Coldcard's security. Their followers and other Bitcoin users followed suit, further amplifying inaccurate information and perceptions.

In contrast, Korean influencers—lacking those direct, close connections and viewing Coldcard from a more neutral perspective—were able to calmly analyze the risks of trusting a specific manufacturer's product. They advised their followers to minimize trust in Coldcard by using methods like generating random numbers via dice rolls. Ultimately, this approach protected many users from losing funds.

"Don't Trust, Verify": A Survival Guide Beyond Code

In hindsight it all seems simple, but I've come to recognize for some time that excessive trust in influencers—and the resulting Bitcoin community "echo chambers" based on personal or financial relationships—is a major structural problem.

Especially over the past few years, I've had to note a significant deterioration in the overall quality of information and discussion about Bitcoin in the English-speaking world, primarily due to these distorted incentives and personal biases. And I believe the Coldcard incident exposed this problem in the worst possible way.

Finally, Bitcoiners' favorite motto, "Don't Trust, Verify," is usually used in the context of software development. But I think this motto should also be applied to how we filter general information beyond software.

In fact, I want to emphasize that simply considering the financial and relational biases of the messenger—applying basic common sense—can proactively prevent a lot of trouble and accidents.

This is something users can do even without technical expertise. Personally, I think one key reason I've survived in the Bitcoin wild west for over a decade is my high sensitivity to human biases and incentives.

Using the success case of the Korean Bitcoin community contrasted with the English-speaking community as a lesson, I hope the entire community can genuinely reflect on itself and strive to prevent future fund losses and other potential harm.

Related Questions

QWhat was the key difference in the approach of Korean Bitcoin community that prevented losses during the Coldcard incident?

AKorean community leaders strongly advocated for and users actually practiced generating secure passphrases through manual methods like rolling physical dice, rather than relying solely on a specific manufacturer's random number generation. This minimized trust in the Coldcard device itself.

QAccording to the article, what structural problems in the English-speaking Bitcoin community contributed to the severe losses?

AThe article points to a lack of neutrality and over-reliance on influencers. Many English-speaking influencers had sponsorship deals or personal relationships with the Coldcard team, which likely clouded their objective assessment and amplified inaccurate information and trust in the product.

QWhat does the author suggest is the broader application of the Bitcoin motto 'Don't Trust, Verify' in light of this event?

AThe author argues that the principle of 'Don't Trust, Verify' should extend beyond software code to how the community filters general information. Users should apply common sense and consider the financial and relational biases of the information source (the messenger).

QWhy were Korean influencers potentially able to give more neutral advice regarding Coldcard?

AKorean influencers lacked the direct, close ties (like sponsorships or personal relationships) that many English-speaking influencers had with the Coldcard/Coinkite team. This allowed them to view the product with a more neutral perspective and objectively analyze the risks of trusting a specific manufacturer's product.

QWhat specific self-custody practice is highlighted as a reason for the Korean community's resilience?

AThe Korean community's strong enthusiasm for and practice of 'air-gapped self-custody' is highlighted. This refers to using hardware wallets that are not connected to the internet or wireless communication, and in this case, was complemented by manually generating entropy (e.g., dice rolls) instead of relying on the device.

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