is a protected area in OneDrive where users can store their most important or sensitive files and photos without sacrificing the convenience of anywhere access. Personal Vault has a strong authentication method or a second step of identity verification, such as fingerprint, face, PIN, or a code sent via email or SMS. Personal Vault is not available in macOS app. Interoperability OneDrive allows users to embed their Word, Excel and PowerPoint documents into other web pages. These embedded documents allow anyone who visits these web pages to interact with them, such as browsing an embedded PowerPoint slideshow or perform calculations within an embedded Excel spreadsheet. In addition, Microsoft has released a set of APIs for OneDrive via Live Connect to enable developers to develop web services and client apps utilizing OneDrive's cloud storage. This allows users of these web services and client apps to browse, view, upload or edit files stored on OneDrive. A software development kit (SDK) is available for .NET Framework, iOS, Android and Python with a limited set of API for web apps and Windows. OneDrive is already interoperable with a host of web services, including: Outlook.com: Allows users to: Directly upload Office documents and photos within Outlook.com, store them on OneDrive and share them with other users. Directly save Office documents within Outlook.com to OneDrive, and view or edit these documents directly within the web browser. Edit Office documents within the web browser using Office Online and reply directly back to the sender with the edits made. Facebook, Twitter and LinkedIn: Enables users to quickly share their files with their contacts on these social networks. OneDrive maintains an access control list of all users with permissions to view or edit the files, including those users on social networks. Bing: Save & Share feature allows users to save search histories into a OneDrive folder. Windows Live Groups: Before being discontinued, Windows Live Groups provided each group with 1 GB of storage space on OneDrive to be shared between the group members. Group members were allowed to access, create, modify and delete files within the group's OneDrive folders, along with the other functionality that OneDrive provides. However, these features eventually became native to OneDrive. Samsung Gallery: Users can sync their photos and videos from the gallery of Samsung Devices to OneDrive through the partnership of Microsoft and Samsung. Privacy concerns, complete loss of access to data and applications