It is simple and straightforward to change your phone number in the App.
Just click on Profile in the lower right-hand corner of the interface
Now, click on Security to view the different options
Click on Update (next to the phone number displayed) in order to change the number
Provide the new phone number and confirm the input by clicking on Continue
Now, a verification code is sent to the new phone number.
Finally, enter the code to confirm the phone number.
An in-App notification will confirm the change - the new phone number is now displayed in the Security interface of the App
Important: you automatically also receive a notification to your email address.
Always follow these precautions when using the app:
Do not leave your device unattended
Keep your password secret
Enter your password hidden from view
Always use the latest version of the operating system and the app
Furthermore, we recommend:
Activate the code lock (screen saver password)
Do not perform a jailbreak or rooting of your device (may compromise its security infrastructure)
Use the encrypted WLAN network at home or the provider's mobile network (these are more secure than public networks).