Managing SharePoint Oversharing Issues

This guide discusses the issue of SharePoint oversharing, which occurs when files or folders are shared with individuals who should not have access or with incorrect permission levels. It outlines the causes of oversharing, including overly permissive sharing settings and user errors, which can lead to data breaches and compliance violations. The document emphasizes the need for enforcing strict access controls, conducting regular audits, and educating users about proper sharing practices. Additionally, it explains how users can share content through various options available in SharePoint while cautioning against careless sharing, such as creating unrestricted links. The guide further details the configuration of sharing settings from the tenant to the site level, suggesting that site owners should carefully consider who has sharing permissions to maintain content security. It also presents methods for reporting on oversharing incidents using PowerShell scripts and the Site Usage Report, which helps in monitoring sharing activities effectively.