1. Have you already activated LuxTrust Mobile?

• Open your LuxTrust Mobile app
• Click on the main menu (3 bars) then on "My Certificate", then "Accept"
• View your SSN

2. Not yet activated LuxTrust Mobile?

• Go to the LuxTrust website via this link
• Click on "Test my certificate"
• Log in with your LuxTrust device
• Find the number under "SSN"

In the future, to make things easier, we advise you to activate LuxTrust Mobile.