Good question. An unopened Jade is fine to use as long as the tamper seal is intact and it came directly from Blockstream or an authorized reseller. When you set it up, let the device generate the seed itself (never use a seed someone else provided), verify the firmware against Blockstream's officia...

Dica de segurança: a rede Bitcoin não expira, mas sua chave privada é o único fator crítico. Verifique a integridade da carteira offline antes de qualquer operação.

The device matters less than the backup. If both the device and the recovery phrase are lost, funds are unrecoverable, and an unreadable backup makes the device's security irrelevant even when no attacker is involved.