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On August 27th, the Bitcoin multi signature hardware wallet Frostnap released version 0.4.0, fixing two security issues. Currently, no user fund losses have been found. The FSA-2026-001 vulnerability involves malicious signature requests, while the FSA-2026-002 vulnerability involves finding addresses that exceed the recovery scan range. After the update, the application prompts to upgrade the device firmware and add firmware downgrade protection. The team recommends updating the application and firmware as soon as possible.