Bitcoin’s recent slide is not being driven by one event alone. A security scare tied to a hardware wallet, softer spot ETF demand, and a rare sale from Strategy are all adding weight to the market at the same time.
Coldcard issue shakes confidence
The most immediate concern is a vulnerability linked to Coldcard hardware wallets. Coinkite, the maker, warned that only users who generated seed phrases on certain affected firmware versions may be exposed, so the problem is serious but not universal across all devices.
The incident has widened quickly and the reported losses have climbed in stages:
- Early estimates pointed to nearly $40 million in bitcoin taken from affected wallets.
- Two more attack waves were identified after the first public warning.
- Total losses later reached 1,367.05 BTC, worth about $88.6 million.
- Alex Thorn of Galaxy Digital said he saw a fourth wave that matched the pattern of vulnerable Coldcard UTXOs and described the evidence as strong enough to suggest another coordinated attack.
- He also urged affected holders to move funds right away, with roughly 449 BTC still believed to be exposed in that wave.
The damage is not limited to stolen coins. The episode has also weighed on sentiment across crypto social platforms, where Santiment says Bitcoin’s positive-to-negative reading on X, Reddit, and Telegram has fallen to its lowest level since tracking began. That matters because weak sentiment often feeds short-term selling pressure.
ETF flows lost momentum
Institutional demand through spot Bitcoin ETFs has also turned uneven. June was the weakest month on record for the category, but July started with a rebound, including almost $200 million in net inflows during the first week.
That improvement did not last smoothly, and the pattern shifted several times:
- Inflows slowed by the middle of the month.
- A stronger stretch followed, with seven straight days of net inflows from July 14 to July 22.
- After that streak ended, outflows returned and erased part of the recovery.
- SoSoValue has not yet released August flow figures, so the latest trend remains incomplete.
These flows matter because spot ETFs are the main route for investors who want regulated exposure without handling private keys themselves. That includes pension-style capital, hedge funds, and other allocators that prefer custody simplicity. In a week shaped by a wallet exploit, the appeal of products from BlackRock, Fidelity, Bitwise, and Franklin Templeton may look stronger to cautious buyers.
Strategy’s sale adds a third headwind
Corporate behaviour is also contributing to the softer tone. Michael Saylor, co-founder and executive chair of Strategy, said the company lifted its USD reserve by $250 million and carried out an $81 million buyback of STRC shares.
At the same time, the company also disclosed a bitcoin sale that stood out because it runs against its usual accumulation strategy. Between July 27 and August 2, Strategy sold 1,637 BTC for about $105 million, reducing holdings from 843,775 BTC to 842,138 BTC. The cut is small relative to the firm’s overall position, but it still matters because Strategy has been seen for years as a steady buyer rather than a seller.
What the price action is saying
With these three pressures working together, Bitcoin’s weak price action makes more sense. The market is digesting a security shock, softer institutional flows, and an unexpected corporate sale all at once.
- Spot price: about $63,600, according to CoinGecko
- Weekly move: down roughly 1%
Seasonality may also be working against the market. August has ended lower in 9 of the past 13 years, which does not guarantee another weak month, but it does leave room for caution. With sentiment damaged, ETF flows less consistent, and Strategy no longer behaving as a pure accumulator, Bitcoin may stay volatile in the near term.