The default option for Office 365 groups is to make them public. A public group is accessible by all SUNY New Paltz faculty and staff with an Office 365 account, and as of 2017 (date to be determined) all students will be on Office 365 and will thus have access as well. You may want to have your group public. If so, you can ignore this article. If you don't want your group public and it currently is, here is how to adjust the permissions.