---
title: Welcome
description: 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.
icon: Home
---

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

<Cards>
  <Card
    title="Why 1Security"
    href="/en/docs/why-1security"
    description="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."
  />
  <Card
    title="Getting Started"
    href="/en/docs/installation"
    description="Install 1Security, connect your Microsoft 365 tenant, and run your first scan - results the same day."
  />
  <Card
    title="NIS2 Readiness"
    href="/en/docs/nis2"
    description="Map 1Security to the NIS2 reporting clock and Article 21 evidence, if regulation is on your desk."
  />
</Cards>

## Explore the platform

<Cards>
  <Card
    title="The Screens"
    href="/en/docs/screens/activity-logs"
    description="How each screen - Devices, Activity Logs, Files, Apps, Agents, and more - answers a real investigative question."
  />
  <Card
    title="Permission Graph"
    href="/en/docs/permission-graph"
    description="Map every identity - human, service account, app, AI - to every resource it can reach, indirect paths resolved."
  />
  <Card
    title="Reference"
    href="/en/docs/reference/api"
    description="API reference, configuration schemas, and the full list of every setting."
  />
</Cards>

<Callout type="info">
  New here? Read [Why 1Security](/en/docs/why-1security) first - it frames
  everything the platform does around questions you already know you can't
  answer today.
</Callout>