The Vault is a dedicated section for structured secrets: logins with usernames and passwords, credit and debit cards, and SSH keys. Entries get proper fields instead of free text, logins display a site icon, and everything is end-to-end encrypted like the rest of your data.
It gives the handful of credentials that otherwise end up scattered across notes a tidy, protected home. Pair it with the app lock and PIN protection for a second gate on your most sensitive entries. A Bitwarden import lands here automatically.