Application passwords allow you to secure and control access to your data by synchronization. For each synchronization that you configure in a client or an app, you can create and use a specific password.
When you need a new application password, indicate in which software or app you are going to use it. If you do not use an application password any more or think that it might habe been compromised, delete it to disable access to your data.
Application passwords are generated automatically by postel.bzh and can neither be chosen nor displayed again.