In order for Alfred to automate your work on Linkedin, it needs to access your account login credentials. Rest assured that these are encrypted and protected and are completely safe and not accessible by anyone else but you.
You can connect your Linkedin account by heading to the Automation Settings page under Settings. On the right side of the screen, you'll see a section titled Linkedin connection.
Enter your Linkedin login credentials.
You can verify that your account is connected by clicking on the the desktop app.