If the external storage media on which the mnemonic, passphrase, password, etc., created at the start of the wallet usage are recorded are lost due to sloppy storage, etc., the wallet can be opened by a malicious third party, and the customer's assets and information can be greatly affected, such as the transfer of the cryptographic assets held. The reason why this happens is as follows. The reason why this happens is that there is a major problem with the way you store your important external storage media. Do not simply store them in a desk drawer, wallet, or business card case.
Securely store important external storage media!
Review once again how you store the external storage media on which you recorded your mnemonic, passphrase, password, etc. that were created when you started using the wallet. It's all about improving your self-defense capability against all kinds of assets, such as locking them tightly in your own safe.