Don't tell anybody that doesn't need to know that you've got a Trezor wallet, in fact it's a good practice to learn all you need to know about setting up a Trezor wallet instead of asking a person how to set up one so you're comfortable knowing that no one knows that you've got a Trezor wallet. Shutting up about why you've got this bitcoin or crypto related stuff is the best thing that you can do.
I don't think it's possible if it's brute forcing each word from the seed phrase, I mean it's doable but you're more likely to see the death of the universe than ever seeing that from happening because it takes a long time to do so.