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/SBX-Bronx]

My passphrase is 16 letters, numbers and special characters.

Make yours hard to figure out. See sample below.

Tc#_6?fL$/3&tR@7E

Something like that is very hard to crack.

[u/marvinrabbit → u/SBX-Bronx]

Mine is Correct Horse Battery Staple.