Traditional Culture Encyclopedia - Traditional culture - Is it safe to use the password lock of the second-hand house after modification?

Is it safe to use the password lock of the second-hand house after modification?

Safe. For the sake of safety, it is best to replace the password lock of the second-hand house to prevent the original landlord from leaving a spare key, or find an unlocking company to restore the settings and reset the new password. However, in addition to the password and fingerprint, the password lock also has a spare key to open to prevent the original landlord from leaving a spare key.