Cognni only ever stores object metadata, NEVER file contents.
The metadata which we store is:
For Users (Internal & External) - Azure AD Email Addresses, External Recipient Email Addresses, and Information associated with Microsoft Emails (when applicable).
For Items (Files, Folders, and Email Attachments) - Content Recognition Signature (CRS) Name of File, File, Size, Owner, Creation Time, and Most Recent Edit.
For Events (Internal & External) - Shared Item Document Path, Sharer, Recipient(s), Mode of Share (Exchange, OneDrive, SharePoint, Teams), and Share Date & Time.