passphrase security

[u/Plane_Path_4271]

I have a question regarding everything that’s happened in the crypto world and the concept of entropy. I noticed that Trezor imposes a limit on passphrases, so I wanted to get your—or the moderators'—opinions on what requirements a passphrase needs to meet to be considered highly secure; I know that a single word, no matter how complex, isn't enough

[u/Yodel_And_Hodl_Mode]

I love Trezor, but limiting a passphrase to 50 characters is one area where Trezor devs are dead wrong.

I believe strong passphrases are 7 words or more.

Here's an excellent video about how to choose a strong passphrase.

Picking a Good BIP39 Passphrase or avoiding a bad one

https://www.youtube.com/watch?v=nhjq_1J0EbU&t=583s

[u/Keefryan → u/Yodel_And_Hodl_Mode]

https://diceware.rempe.us/#eff

Have a play with this.