OneKey founder Yishi Wang suggested that the asset concentration of BlackRock's spot Bitcoin ETF (IBIT) could make it a target for North Korean hackers, with discussions involving its primary Bitcoin custodian, Coinbase, CryptoSlate reported. The report explicitly states there is currently no evidence that IBIT or Coinbase's custody system has been compromised, and this warning does not prove that hackers are actively attacking the fund. The above represents Wang's assessment of institutional custody risks, not a confirmed attack incident.