BlackRock Bitcoin ETF flagged as hacking risk
OneKey founder Yishi Wang warned that North Korean hacking groups may view BlackRock’s Bitcoin ETF, the iShares Bitcoin Trust (IBIT), as a potential target. His comments follow major crypto thefts attributed to North Korean-linked attackers, including the Bybit hack and a recent Binance breach. They are a warning, not evidence of an attack on the fund.
As of 30 October, the BlackRock Bitcoin ETF held about $62 billion in net assets, or roughly 815,000 BTC—around 3.9% of Bitcoin’s maximum supply. Coinbase is its primary Bitcoin custodian, and BlackRock has said it does not currently intend to move its holdings away from Coinbase. Anchorage Digital was recently added as another custodian partner.
No compromise of Coinbase’s custody systems or the ETF has been reported. The report notes that Coinbase’s commercial crime insurance covers multiple clients, while custody liability is generally capped at $100 million per cold-storage address, subject to contractual exceptions. The warning has renewed attention on custody and concentration risks for spot Bitcoin ETFs.
Neutral
The report does not confirm an attack on BlackRock’s Bitcoin ETF or Coinbase custody systems. Wang’s comments are a forward-looking warning, so the immediate market effect is likely limited unless new evidence or a security incident emerges. Traders may nevertheless monitor Coinbase-related news, ETF flows and any changes to custody arrangements, as concerns about concentrated custody can weigh on confidence in spot Bitcoin products.
Past high-profile crypto hacks, including the Bybit theft and exchange security breaches, have sometimes triggered short-term risk aversion, volatility and withdrawals from affected platforms. The impact has generally depended on the scale of losses, whether customer funds were at risk, and the speed and credibility of the response. In this case, there is no confirmed loss or disruption to the ETF, which limits the basis for a market-wide bearish call.
Over the longer term, the warning may encourage investors and regulators to scrutinise institutional custody, insurance limits and reliance on a small number of service providers. That could support demand for stronger custody controls and diversification, but it does not by itself change Bitcoin’s supply, demand or fundamentals. Overall, the news is neutral for the broader crypto market, with a modest potential to weigh on sentiment around Bitcoin ETF custody if concerns escalate.