File synchronization (file sync) is a method of keeping files that are stored in several different physical locations up to date. Cloud and storage vendors often offer software that helps with this process.
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File synchronization has grown increasingly important as enterprises use the cloud as a means for collaboration. It is also commonly used for backup and for mobile access to files. However, file synching often presents security concerns to enterprises whose employees use consumer-grade applications to access business files.
File synchronization software is used to store copies of on-premises data to another device or to the cloud. The files are typically available to be accessed via a Web-based portal. Some examples of file sync software include Box, Syncplicity and Dropbox.