http://lmgtfy.com/?q=What+happens+if+the+SatoshiLabs+servers+are+hacked+and+the+firmware+signing+key+is+stolen&l=1
I don't think this answers the question. You get a "seed" that you can use to restore your wallet in the event that you need to replace your trezor. What happens if whatever server that is storing the connection between the seed and the private keys get compromised? What happens if the SatoshiLabs servers are hacked and the firmware signing key is stolen?
First off, this wont happen
. The SatoshiLabs master key is kept very safe. However, you dont need to rely on the SatoshiLabs signature. You can verify the build yourself. Our hope is that a few trusted TREZOR users will make a habit of verifying firmware checksums. If you are concerned about this, we suggest making a habit of checking our blog or social news channels such as reddit before applying any updates. If there ever was a problem with the firmware not matching the source code, you can be sure someone will have written about it.
You dont need to worry about the firmware being updated by a computer virus. Your TREZOR will ask you to manually confirm the update before anything is written to the TREZORs memory.
First off, this wont happen
. The SatoshiLabs master key is kept very safe. However, you dont need to rely on the SatoshiLabs signature. You can verify the build yourself. Our hope is that a few trusted TREZOR users will make a habit of verifying firmware checksums. If you are concerned about this, we suggest making a habit of checking our blog or social news channels such as reddit before applying any updates. If there ever was a problem with the firmware not matching the source code, you can be sure someone will have written about it.You dont need to worry about the firmware being updated by a computer virus. Your TREZOR will ask you to manually confirm the update before anything is written to the TREZORs memory.