Soon, an improved version with enhanced security of Security & Encryption for Confluence Cloud will be released. Please check out next steps for administrators at this page.
Overview
If you want to find out which page you had previously inserted a secret into, you can do so by clicking on the secret's detail page.
In the Confluence the left sidebar menu
choose Secret List (1)
You'll see a display of the list of secrets available in the space.
To view the detail page for a secret
choose the title of the secret (2)
In the secret's detail page, the Location section shows you the page that contains the secret.
choose the page title to go to the page that contains the secret (3)