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.
Monday, 9 November 2026
Independent coverage of global markets, trade and finance
Crypto
Policy desk, National Trade News (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.