Antwort auf: Seriennummer
Hi, as raymonddurk explained, the serial number is not relevant. There are important security measurements that can assure you your device is safe to use:
1. All Trezor devices are distributed without a firmware software, so you need to install it for your first use. If there is a firmware installed already, then that means that someone used this device before you.
2. The bootloader verifies the firmware signature each time you connect your Trezor to a computer. You can connect to Trezor Wallet only if the firmware is correctly signed by SatoshiLabs. If there was an unofficial firmware installed, your device would flash a warning sign on its screen upon connecting it to a computer.
3. Because the recovery seed is generated by you during the Trezor setup, you can be sure you are the first and only owner of your private keys.