Welcome
Documentation for 1Security - the identity-and-permission forensic platform for Microsoft 365. Answer who has access to what, and what they did with it, on standard licenses.
Welcome to the 1Security documentation. 1Security is the platform for the permission-centric era of security: attackers don't break in anymore, they log in - and 1Security is built to catch them, on standard Microsoft 365 licenses.
These pages walk you through everything from your first scan to the deepest configuration knobs the platform exposes.
Start here
Why 1Security
The five questions every security team gets asked and can't answer from native Microsoft 365 - and how 1Security turns each into minutes of work.
Getting Started
Install 1Security, connect your Microsoft 365 tenant, and run your first scan - results the same day.
NIS2 Readiness
Map 1Security to the NIS2 reporting clock and Article 21 evidence, if regulation is on your desk.
Explore the platform
The Screens
How each screen - Devices, Activity Logs, Files, Apps, Agents, and more - answers a real investigative question.
Permission Graph
Map every identity - human, service account, app, AI - to every resource it can reach, indirect paths resolved.
Reference
API reference, configuration schemas, and the full list of every setting.
New here? Read Why 1Security first - it frames everything the platform does around questions you already know you can't answer today.