In the context of SaaS security, endpoint query refers to a non-intrusive method used to check whether an endpoint, such as a user’s device, has accessed or utilized a specific SaaS application or product. By querying endpoints, organizations can gather data on which SaaS applications are being used across their network. This process helps organizations better manage their SaaS environment by providing insights into application usage, enabling them to identify potential security risks, such as unauthorized or insecure applications, and ensure compliance with internal policies and regulations.