> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cyborg.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction to Encrypted Indexes

Encrypted Indexes are the main organizational unit of CyborgDB. One encrypted index is secured with one index key, which provides useful segmentation:

* **Cryptographic isolation**: each index is isolated via encryption keys, making it impossible to query/view the contents of an index without proper access/authorization.
* **Multi-tenancy**: this separation makes it easy to separate data scopes (e.g., tenants) in a robust and secure manner.

One client can manage an arbitrary number of indexes, and an index can contain an arbitrary amount of items/vectors. All contents of the index are encrypted at rest and during index traversal. Only the final candidates are decrypted.
