How to Investigate an OAuth Grant for Suspicious Activity or Overly Permissive Scopes

OAuth grants can simplify account creation but often involve permissions that users do not fully understand, potentially giving unwanted access to corporate environments. Therefore, organizations should regularly review these grants, paying particular attention to vendors’ reputations and the scopes of their permissions. Investigating domains, publisher emails, and the vendors’ activities in the business’s environment are recommended. Monitoring the vendors’ security is also crucial. Tools like Nudge Security can provide visibility and ease the management of OAuth grants.