If you want to log out all devices currently connected with your Bitpanda account, you can click on the button "logout all sessions" which you can find under the menu item "Security" at the category "Account Logs".
Furthermore you are able to see all devices which are or were connected to your account.
In order to connect a new device, you need to confirm this via email.
Also you can decide individually whether you want to remove this specific device´s connection or just end the actual session on that device.
Here you can also see all your logs.