Follow these steps to install Secure Privacy on Squarespace.
Go to the installation page and get the Secure Privacy script.
Go to the Settings (cog icon) of your Squarespace account
From the Settings menu, navigate to Code Injection.
Please note: Code Injection is a Premium feature available in Business and Commerce plans.
Paste the Secure Privacy script in the Header section text area, click Save
Your Secure Privacy script is now installed!