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Data room confidential mode allows the administrator of the virtual room to restrict a particular user’s access to the VDR by determining their IP address or the type of device. It’s a useful tool for M&A deals and other delicate business ventures.

A good service will permit users to set granular permissions and use two-factor authentication. They will also have remote shred, which removes downloaded files when administrators block access. In addition, they will be able to handle most common formats for files, such as PDFs and XLSXs. The best providers can also add a watermark to files that users download, which can help deter people from sharing leaked copies of the files online. They can also specify a time limit for files that have been downloaded to prevent downloads that are not authorized.

Other useful tools include redaction which enables the administrator to remove (black out) fragments of text or specific areas of a document that are not in the view of authorized users. This is crucial because it will protect any personally identifiable information as well as critical business data from hackers. The most reliable VDR providers can modify PDF Doc, Docx, PPT, Txt GIF, JPG and Q&A files.

Some providers allow users to print out documents which will automatically add a watermark. they may even permit users to download the original version of the file. Finally, a good provider will provide users with a question and answer feature that lets them discuss files in the data room and keep answers in an easily searchable database. This can be extremely useful for M&A deals or any due diligence project.