Hook Security utilizes the SendSafely tool to encrypt and ensure the delivery of all reporting data to the appropriate people.
Typically monthly, after the Hook Security's team has verified and checked the results, the appropriate people should receive an encrypted email from Hook Security. This email will give you instructions to receive a one time code to access the reports. (This is very similar to the now prevalent multifactor authentication tools.)
That's it. Nothing to install.
Hook Security's reports are Done-for-You(tm).
Want to know more about how it works? You can visit their site: https://www.sendsafely.com/howitworks/