Bitcoin multiple-signing hardware wallets Frostsnap fix two security issues, and the team urges the user to update them as soon as possible

On 27 August, the Bitcoin multiple-signed hardware wallet, Frostsnap, released version v. 0.4.0 to repair two security problems and stated that no loss of user funds had been detected. Two of the problems are one (FSA-2026-001): malicious signature requests can mark an output as a "user's wallet" and the equipment does not verify the statement and is not shown on the confirmation screen, which may result in funds being transferred to an address that the user has not seen before; and the other (FSA-2026-002): finding a zero address may go beyond the wallet restoration scan, where the backup is restored and the missing funds are still in the wallet. An updated application will indicate an upgrade of the device ' s solidware and add a new downgrade protection for the solidware. The team recommended that applications and solids be updated as soon as possible。