Do the Coldcard attacks mean all hardware wallets are now insecure?
The Coldcard entropy flaw caused a crisis of confidence in hardware wallets. Here’s the details you need to know before you entrust Ledger, Trezor or Foundation with your Bitcoin.
Tuesday, 3 November 2026
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Markets Brief gilt-and-policy note (2026-08-05): The Coldcard entropy flaw caused a crisis of confidence in hardware wallets. Here’s the details you need to know before you entrust Ledger, Trezor or… Primary source: original at Cointelegraph (cointelegraph.com).
Do the Coldcard attacks mean all hardware wallets are now insecure?
The Coldcard entropy flaw caused a crisis of confidence in hardware wallets. Here’s the details you need to know before you entrust Ledger, Trezor or Foundation with your Bitcoin.