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Morning Edition · Wednesday, August 19, 2026Published at 1:47 AM EDT · New York
Investigator Traces Coldcard Bitcoin Thief to a Paid Blockchain Data Account
Block engineering lead Clay Garrett says a provider's internal logs match the sweep of 1,082.65 BTC with what he calls extraordinary specificity, though the FBI has confirmed no identification or charge.
The investigation into the theft of 1,082.65 BTC from Coldcard hardware wallets has produced a lead that does not depend on blockchain analysis. Clay Garrett, an engineering lead at Block working on the Bitkey wallet, says the operator used…
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Implementation Bugs, Not Just Exploits, Threaten Custody
Cryptographic implementation errors in wallets and signers (biased nonces, reused randomness, faulty derivation) keep surfacing as a distinct custody risk alongside smart-contract exploits, eroding the assumption that certified hardware protects keys.
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