Bitcoin Price Fluctuates Around $64,000 as Coldcard Losses Exceed $116 Million

cryptonews.ruPublished on 2026-08-05Last updated on 2026-08-05

Abstract

Bitcoin's price is holding around $64,000 despite significant negative pressure. Losses from a vulnerability in Coldcard hardware wallets have surpassed $116 million, with thefts continuing in waves. Michael Saylor's MicroStrategy sold another 1,638 BTC (its third sale this year), and wallets linked to the firm moved a further 1,030 BTC, raising fears of a fourth sale. In Washington, the "Clarity Act" bill faces likely failure after Democratic senators blocked negotiations. The Coldcard flaw, stemming from a March 2021 firmware bug, caused some devices to generate seeds with only ~40 bits of entropy instead of 128, exposing long-term holders to brute-force attacks. Developer James O'Beirn launched a public dashboard tracking the ongoing thefts in real-time; a test wallet with no added entropy was drained within an hour. Coinkite has halted shipments and urged affected users to move funds immediately, as firmware updates alone cannot eliminate the risk. For bulls, a potential floor is seen around Bitcoin's production cost, currently estimated at $54,000 (with an energy cost component of ~$40k). Historically, prices have bottomed below this cost in previous cycles. Meanwhile, exchange inflows have spiked as worried Coldcard users transfer coins, and with MicroStrategy still holding $5 billion in approved sales, alongside the potential collapse of the Clarity Act, further downward pressure looms.

By any ordinary measure, Bitcoin should be falling. Losses from the Coldcard hardware wallet theft have exceeded $116 million, and waves of fund withdrawals have continued since the vulnerability was discovered on July 30. Michael Saylor's company, Strategy, reported selling 1,638 $BTC for approximately $104.7 million (its third sale this year), and wallets linked to the company transferred another 1,030 $BTC on Wednesday, heightening concerns about a fourth sale.

In Washington, a vote to end debate on the 'Clarity Act' bill is poised to fail after Democratic senators blocked negotiations on ethics issues. The probability of the bill becoming law in 2026 has dropped from 27% to 23% (as of today), according to Polymarket.

Nevertheless, despite all this, Bitcoin has not given up: its price continues to fluctuate around $64,000—significantly below its highs, yet it stubbornly maintains a stable level despite an almost exclusively negative news flow.

Tracking the Attack in Real Time

The Coldcard vulnerability remains the most troubling story of the week. A bug in firmware dating back to March 2021 caused some devices from Canadian manufacturer Coinkite to generate recovery seeds with approximately 40 bits of entropy instead of 128, exposing long-term holders to brute-force attacks. Bitcoin.com News published a full analysis of who lost coins and who remains at risk.

The attack is ongoing and is now being tracked publicly. Bitcoin developer James O'Beirne launched an interactive monitoring dashboard displaying the ongoing thefts by seeding the network with "tripwire" unspent transaction outputs (UTXOs) built on vulnerable default seeds with varying levels of added entropy. The results were alarming: his control wallet with no added entropy was drained within an hour, proving that attackers are continuously scanning the vulnerable seed phrase space.

Coinkite has halted shipments and destroyed remaining stock manufactured with the vulnerable firmware, telling customers: 'Years of saved money are gone. Years of trust are destroyed.' The company urgently advised affected device users to immediately transfer their funds to new wallets, warning that a firmware update alone is insufficient to eliminate the risk. A fourth wave of thefts took 388.9 $BTC (approximately $29 million) in one Sunday evening.

What the Bottom Could Look Like

The bulls seem to have a benchmark for evaluation: Capriole Investments founder Charles Edwards referenced Bitcoin's production cost (the total cost for miners to produce one coin), emphasizing it currently stands at $54,000, with the electricity cost portion of this metric estimated at $40,000.

Historically, prices have fallen below the production cost at every cycle bottom, meaning the current price of $64,000 is still trading at a premium, but a floor is clearly defined.

Finally, exchange inflows spiked as frightened Coldcard users transferred their coins, while Strategy still has $5 billion in authorized sales remaining. As if that weren't enough, the failure of the Clarity vote this week seems poised to deliver another blow before the August recess (which could send Bitcoin's value tumbling again).

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Related Questions

QWhat are the main negative factors affecting Bitcoin's price mentioned in the article?

AThe main negative factors are: the ongoing thefts from vulnerable Coldcard hardware wallets exceeding $116 million in losses; the large Bitcoin sales by Michael Saylor's company, MicroStrategy, which have intensified fears of further selling pressure; and the anticipated failure of the 'Clarity Act' bill in Washington, which reduced its probability of becoming law from 27% to 23%.

QWhat is the nature of the vulnerability in Coldcard devices?

AThe vulnerability was a firmware bug dating back to March 2021, which caused affected Coldcard devices from Coinkite to generate wallet recovery seeds with only about 40 bits of entropy instead of the secure 128 bits. This made the private keys vulnerable to brute-force attacks.

QAccording to the article, what is a potential technical bottom for Bitcoin's price based on historical cycles?

AAccording to Charles Edwards of Capriole Investments, a potential technical bottom could be around Bitcoin's production cost, which is currently $54,000. Historically, prices have fallen below the production cost at every cycle bottom, with the energy-only component of that cost estimated at $40,000.

QWhat actions did Coinkite, the maker of Coldcard, take in response to the vulnerability?

ACoinkite suspended shipments and destroyed its remaining inventory of devices manufactured with the vulnerable firmware. They urgently warned affected users to immediately move their funds to new wallets, stating that a firmware update alone was not sufficient to eliminate the risk.

QWhat did developer James O'Beirn's monitoring dashboard reveal about the Coldcard attacks?

AJames O'Beirn's public monitoring dashboard revealed that attackers are continuously scanning the vulnerable seed phrase space. His control wallet, set up with a default vulnerable seed and no added entropy, was drained within an hour, proving the attackers' persistent activity.

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