If you're using integrations just, for example, to automatically publish your blog posts into Guild and you're not using/exporting member data to any 3rd party systems, there is no exposure to your group members. You can communicate this to your members through the 'Additional information' field under the 'Data Privacy' tab in your admin's 'Integrations' section. You or your company are still responsible for the user data and need to fill out the 'Data Privacy' section before running any integrations.