---
type: source
title: "Central User Account: Two-Factor Authentication"
tags: [security, authentication, 2fa, totp]
related: [zentraler-nutzeraccount, ums, totp]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_zentraler_nutzeraccount_2_faktor_authenti.md"]
---

# Central User Account: Two-Factor Authentication

This source describes the mandatory implementation of Two-Factor Authentication (2FA) for the central user accounts at Universität Greifswald.

## Key Requirements
- **Mandatory Activation**: 2FA must be activated during the first login to the [[ums]] (Account Management).
- **Method**: The university utilizes **TOTP** (Time-based One-Time Password).

## Setup Process
Users are presented with a setup dialog after entering their username and password. There are two available variants for linking the account to a TOTP-capable application:
- **Variant A**: Scanning a provided QR code using a TOTP app (e.g., **FreeOTP**).
- **Variant B**: Manually copying the **TOTP-Secret** (found under "Details einblenden") into a compatible application (e.g., [[keepassxc]]).

The process is finalized by entering a valid code generated by the software to verify the connection.

## Support
Technical assistance for 2FA and other Campus-IT issues is provided by the [[universitatsrechenzentrum-urz]] via:
- The [[groupware]] ticket system.
- The URZ hotline (extension 1420).