If you wish to stop using Hyperfish Lite, the best thing to do is contact firstname.lastname@example.org to end your Hyperfish Lite instance.
To cease all Hyperfish operations across your Office 365 experience, perform the following:
Turn Hyperbot 'Off' - As a Hyperfish Administrator, Navigate to Settings -> Hyperbot and set Hyperbot to 'Off'. This will stop Hyperbot from communicating with users within your organization.
Remove Hyperfish as an O365 Enterprise Application - As an Office 365 Administrator, sign-in to the Azure Administrator Portal and navigate to Azure Active Directory -> Enterprise Applications -> All Applications. Select the Hyperfish Lite application and click 'Delete'.