"Opt-in" but the logic is in the firmware, so anything is possible. They recently just had a bug that was patched a week ago that allowed you to spend bitcoin without signing the transaction.
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"Opt-in" but the logic is in the firmware, so anything is possible. They recently just had a bug that was patched a week ago that allowed you to spend bitcoin without signing the transaction.
Sounds like ledger is more of a danger than a security then.