Update unraid-account.md (#144)

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Changes per discussion here:
https://app.asana.com/0/1203487746033054/1206498722934544/f

Author: ljm42

docs/unraid-os/faq/unraid-account.md

@@ -2,9 +2,15 @@
 
 ## What is an Unraid.net Account?
 
-An [Unraid.net account](https://account.unraid.net/) is the
-account you create to use the [Unraid
-forums](https://forums.unraid.net/) and the account used to sign in to
-[Unraid Connect](/connect/about.md). This account is _not
-the same_ as your server's root password that you use to login to the
-Unraid webgui.
+An [Unraid.net account](https://account.unraid.net/) is the account you create to use the [Unraid forums](https://forums.unraid.net/), use [Unraid Connect](/connect/about.md), and to manage your Unraid keys. This account is _not the same_ as your server's root password that you use to login to the Unraid webgui. Users do not need to sign into this account to use Unraid.
+
+## Unraid.net Account Sign In / Ups
+
+The unraid.net account is a single-sign-on (SSO) system that is used for authenticating users to Unraid’s online systems with a single account. This system is accessed through the website located at account.unraid.net.
+
+This SSO service is implemented on top of an AWS Cognito OAuth server, which is a private user pool database. User privacy is a top priority for us, and all data is stored securely and encrypted. User data is only accessible by Unraid employees.
+
+The AWS Cognito user pool database stores the following data about registered users:
+
+* User ID, Username, Email address, Unraid Forum ID, User authorized to download Unraid prereleases
+* This database also stores attributes used for login, such as Password hash, MFA details, and Google/Apple SSO information.