Two-Factor Authentication

Learn how to protect your access to the Customer Control Panel (CCP) with two-factor authentication.

Two-factor authentication (2FA) helps to better protect your sensitive data by adding an additional authentication step to logins with a username and a password. Your Customer Control Panel (CCP) is also protected by 2FA and can only be accessed with a security token — a time-based one-time password (TOTP).

These tokens are 6-digit numbers. They are only valid for a period of 30 seconds (Authenticator app) or 15 minutes (email token) and must therefore be entered within the specified time.

There are two options for generating the security token for the login:

Two-Factor Authentication With Authenticator App (recommended)
Two-Factor Authentication With Email

Option

Advantages

Disadvantages

Receive
token via
authenticator
app

Higher level of
security, as tokens
are generated locally.
Can be synchronized
on multiple devices.
Also works offline.
Token is generated
immediately.
The customer account
can be accessed even
if the email inbox is
not available.
Requires an
additional setup
of the app on
another device.

Receive
token
by email

Easy
to use.
No additional
software or
device required.
Potentially insecure
if email account is
not well protected.
Dependency on a
specific email inbox
to obtain tokens.

When you set up an account with netcup for the first time,receiving the token by email is activated by default. If you want to obtain your token via an authenticator app , proceed as follows:

1. Two-Factor Authentication With Authenticator App

Choosing and Installing Authenticator App

Install an authenticator app on your smartphone that supports TOTP (Time-based One-time Password). We recommend the following apps:

Android: Aegis or Anexia Authenticator (external links)
iOS: Authy or Anexia Authenticator (external links)

For security reasons, do not use the same device for the authentication app that you use to log in to the Customer Control Panel.

Activating Two-Factor Authentication in the Customer Control Panel (CCP)

Log in to the Customer Control Panel (CCP).
Go to the Master Data menu item.
Click Activate Two-factor authentication.

Linking Authenticator App to Account

Open your authenticator app and tap on Add account.
Scan the QR-code on your screen. Alternatively, you can enter the displayed secret manually.
The app will now generate a 6-digit code. Enter it in the Code field.
Click Confirm two-factor authentication to finish the setup.

Success

The setup is complete. The next time you log in to the Customer Control Panel, you must first enter your customer number and password as usual. In the next step you will be asked to enter the code that is displayed in your authenticator app.

2. Two-Factor Authentication With Email

Receiving the token by e-mail is activated by default. After registering with your customer number and password, you will receive a token sent to the e-mail address you have provided. Enter the 6-digit code to log in.

If you have selected two-factor authentication with app and would like to switch back to two-factor authentication with email, proceed as follows:

Go to Master Data in the Customer Control Panel (CCP).
Click Deactivate Two-factor authentication.
As of now, you will receive a token by e-mail every time you register.

Frequently Asked Questions (FAQ)

Two-factor authentication significantly increases the security of user data and has increasingly become the standard for many online services. In recent years, netcup has also recorded a significant increase in phishing attacks in which access data was intercepted. Two-factor authentication provides an additional protection mechanism that reduces the risk of sensitive data being disclosed to third parties and thus protects both netcup and its customers.

Two-factor authentication via SMS-TAN is currently not supported.

Two-factor authentication via YubiKey is currently not supported.

Last update: 24 April 2026