From what I can tell from reading about this, it seems like people are mainly worried about brute-force password-guessing attacks. Lots of people pick lousy mas

From what I can tell from reading about this, it seems like people are mainly worried about brute-force password-guessing attacks. Lots of people pick lousy master passwords so there is the possibility of some real damage being done. What I am trying to suss out is how worried I should be. My master password is a ~20-character mixed-case nonsense passphrase with spelling errors and digits thrown in. Am I being clueless about the threat level if I conclude that there’s a vanishingly small chance my stuff will get decrypted? Ironically, “switch away from LastPass” was on my to-do list for the holiday week anyway, but now, just to be on the safe side, I guess it will be that plus “change all the passwords on accounts I care about.”