Security
Vault
A folder within a password manager for organizing and sharing credentials — the unit that controls who can access what.
A vault is a folder within a password manager — the unit you use to organize and share credentials. In 1Password, for example, vaults are how you separate, say, finance credentials from operations credentials, and how you control who can see what.
The right way to think about vaults is by access group, not by individual. The question for every vault is "who should be able to see this?" — and membership follows the answer. This keeps credentials organized around roles rather than people, which means access survives turnover: someone joins a team and gains the right vaults, someone leaves and loses them, without anyone hand-editing individual entries.
Designing vaults well follows the same restraint as designing permission groups: create the fewest, simplest vaults that capture real distinctions, and add structure where you genuinely expect access to diverge over time.