Is there a way to see if I have enabled the passphrase for my trezor one hw wallet?
As mentioned, you need to explicitly turn on passphrases for a Trezor ONE. It's in the web wallet GUI, click on the device in the menu on the left, then select "Advanced":
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Ftalkimg.com%2Fimages%2F2023%2F11%2F15%2Fz5jCg.png%3F1&t=663&c=bLFH_04oLUYdHg)
If it is switch on, after you enter your PIN, there will be a prompt to enter the passphrase:
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Ftalkimg.com%2Fimages%2F2023%2F11%2F15%2Fz5rYI.png%3F1&t=663&c=51o-s85klpL3HA)
NOTE: it is possible to enable passphrase functionality, create a passphrase protected wallet... then
disable the passphrase functionality again. It is also possible to enable the passphrase functionality, and use a
blank passphrase.
So this is not a 100% accurate method of determining if there are actually passphrase derived wallets created with your seed.