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US spot Bitcoin ETFs, funds that hold $BTC directly and trade on regulated stock exchanges, recorded a week-long streak of inflows at the same time Coldcard reported a wallet exploit.
Debate has opened over whether some holders moved from self-custody into ETFs. A Bloomberg analyst has said the link between the two events is not clear.
What the Coldcard exploit means for holders Coldcard is a hardware wallet: a physical device used to store the private keys that control access to a holder's $BTC, kept offline and away from internet-connected servers.
When a hardware wallet is compromised, there is no institution behind the holder. The loss risk is entirely individual.
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