I'm trying to figure out how to use a Trezor for my needs. I'd like to have different "layers" of security, so my plan is to use this setup (less secure on top):
- Online wallet for every day usage (1%)
- Trezor with passphrase A connected to online computer (19%)
- Trezor with passphrase B connected to offline computer (80%)
My question is: does it make sense to separate layers 2 and 3 in online and offline computers? I'm assuming that the Trezor does not store the passphrase, so by using passphrase B only in a secure offline computer to sign transactions this layer is much more secure.