The Let’s Encrypt open certificate authority ensures that the internet is no longer transmitted in plaintext. It issues digital certificates for free for free, and the service is completely automated in the right circumstances. In Windows, for example, you can automatically issue certificates from certificates from Lets Encrypt using Windows and AWS. You can then configure Azure Automation to handle the creation, validation and installation of a certificate on a firewall. You need to create some credential objects, which are a way to securely store credentials in run books.”]