are copies of network files that are stored on your computer so that you can work with them when you're not connected to the network or when the network folder that the files are stored in is not available. File encryption provides an additional level of access protection that works independently of NTFS file system permissions. Offline files are not encrypted by default
. You might want to encrypt your offline files if they contain sensitive or confidential information to help prevent unauthorized access to them. This can also help safeguard your files in case your computer is ever lost or stolen.