Bitcoin Under Audit: Is the Market Ignoring a New Risk?

• More than 150 projects are being audited by the Bitcoin Red Team.
• Researchers have already privately notified their developers of findings.

The hacking of Coldcard hardware wallets has raised alarms among developers and security specialists, but it does not seem to have altered market behavior.

At the time of publishing this note, bitcoin (BTC) is trading around $64,000 and continues to trade within the sideways range it has maintained for almost two months, despite an attack that has already left over 1,700 BTC stolen and triggered an unprecedented audit of company software. Bitcoin remains above $64,000. Source: TradingView.

While the market remained calm, the reaction within the Bitcoin ecosystem was immediate. Following the Coldcard hack, developers and security researchers initiated a coordinated audit of some of the most important projects that support the network's infrastructure.

The Risk the Market Ignores

After confirming Coldcard's vulnerability, a group of researchers created the Bitcoin Red Team, an initiative aimed at intensively reviewing much of the critical software used by the ecosystem.

According to Rob Hamilton, co-founder of AnchorWatch, the team has already invested nearly $20,000 in audit infrastructure and analyzed over 150 open-source repositories linked to Bitcoin. So far, researchers claim to have made more than a dozen responsible disclosures to various projects, notifying vulnerabilities privately so they can be fixed before becoming public.

Hamilton also explained that the team developed an automated environment based on artificial intelligence (AI) that combines models such as GPT, Fable, Opus, GLM 5.2, and Kimi K3, in addition to OpenAI's Cyber Harness to review especially sensitive components of the ecosystem. <<Our goal is to make this testing environment open source so that it can target internal repositories, allowing for deeper fortification of defenses than the code that is made public>>, he stated.

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One of the messages that generated the most impact was from developer CalleBTC, a member of the Bitcoin Red Team. In an initial post, he wrote:

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CalleBTC, member of the Bitcoin Red Team.

He also explained that the reviews cover cryptographic libraries, wallets, and infrastructure, and that several critical vulnerabilities have already been reported to their respective developers.

However, CalleBTC himself sought to reassure regarding the origin of the problem. <>, he emphasized.

This clarification is important because the work of the Bitcoin Red Team is not solely focused on investigating Coldcard, but rather on taking advantage of the episode to proactively review other components of the ecosystem that may contain similar vulnerabilities.

The Bitcoin Ecosystem Did React

A report from CryptoQuant shows that on-chain activity surged immediately after the hack was revealed. On July 31, daily active addresses jumped from 645,000 to nearly one million, the highest level since December 2024, primarily driven by users moving their bitcoins to new addresses.

The reaction was particularly intense among small holders. Transfers of less than 1 BTC reached 39,600 BTC that day, just below the 39,900 BTC recorded after the collapse of FTX in November 2022.

The chart segments transactions by the size of on-chain movements: blue (0-0.01 BTC), orange (0.01-0.1 BTC), green (0.1-1 BTC), and various shades of gray for larger operations (from 1 BTC to over 10,000 BTC). The strong increase observed after the hack mainly came from the green and orange bands, indicating that it was the small holders who led the migration of funds.
Small holders moved their bitcoins after the Coldcard hack. Source: CryptoQuant.

The report detected a significant increase in long-term holder activity, a figure consistent with the typical profile of Coldcard users. The volume of bitcoin moved by these addresses rose from 269,000 BTC on July 30 to 406,000 BTC on August 3 (30-day moving sum), the highest level since January.

Part of those funds ended up on exchanges. According to CryptoQuant, deposits from users with less than 1 BTC reached their highest level since February, suggesting that some temporarily opted for custody platforms to safeguard their assets while evaluating new self-custody alternatives.

The reaction also extended to the Bitcoin network itself. Pending transactions in the mempool increased from 33,000 to nearly 96,000, reflecting the congestion caused by thousands of users attempting to move their funds simultaneously.

The apparent indifference of the market raises a question: Do investors consider this an isolated incident, or are they underestimating a risk that could have deeper consequences for Bitcoin?

Is it too soon to talk about impact? {#h-is-it-too-soon-to-talk-about-impact}

So far, price behavior suggests that the hack did not alter investors' perceptions.

Unlike episodes such as the collapse of Mt. Gox, FTX, or hacks of major exchanges, where the risk fell on custodians holding funds for thousands of users, the Coldcard case affected a component of the self-custody infrastructure. The difference was reflected in the market. After the FTX bankruptcy, bitcoin plummeted nearly 22% in a week, in one of the largest panic episodes of the bear cycle.

Moreover, it is worth noting that the market is mainly reacting to other broader catalysts, such as the evolution of the War in the Middle East, expectations regarding Federal Reserve interest rates, and the legislative progress of the CLARITY Act, one of the most anticipated regulatory projects by the industry in the United States.

In an interview with CriptoNoticias, Javier Espasa Peribañez, a cryptocurrency analyst and master's degree holder, emphasized: <<I believe that what happened with the Coldcard hack will not affect the price of bitcoin in the long term. The market shows resilience in the face of such news. The downturns are temporary because these failures affect the trust in a specific hardware manufacturer, not in the base code or the Bitcoin network, although it can and should open a deep debate about the hidden risks of self-custody.>>

While security specialists believe that the hack justified a thorough review of the software supporting Bitcoin, the market continues to assign greater relevance to macroeconomic, regulatory, and liquidity factors.

This does not mean that the Coldcard case is without consequences. The audit has already detected multiple vulnerabilities and could strengthen the security of the ecosystem in the medium term. However, claiming that this process will ultimately affect the price of bitcoin would be, for now, a hasty conclusion.

The market seems to interpret the hack as a problem limited to certain self-custody tools and not as a threat to Bitcoin as an asset or as a network. Whether this perception will change will depend on what happens in the coming weeks, especially if new relevant vulnerabilities emerge or, conversely, if the audit manages to reinforce trust in the infrastructure that supports the ecosystem.

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