A virtual data room (VDR) is a secure online repository that is used to store and share confidential documents and data. VDRs are commonly used in business transactions, such as mergers and acquisitions, where sensitive information needs to be accessed by multiple parties in a controlled environment. Features of a VDR include advanced security measures like encryption, access controls, and audit logs to track user activity. This ensures that only authorized users can access specific documents, protecting the data from unauthorized access and potential breaches. VDRs facilitate due diligence processes by providing a secure and efficient platform for reviewing and exchanging critical information.