Stop sharing the wrong thing with the wrong person.

You know you should not just paste a link and hope for the best — but SharePoint's sharing options are confusing, the dialog boxes look different every time, and nobody ever explained what "People in your organisation" actually means. The Sharing Handbook walks you through every sharing option using a simple traffic light system: Green for safe, Amber for careful, Red for specific people only. Real screenshots. Plain English. No IT degree required.

This is not a policy document. It is a confidence system.