Learn to use the cipher utility with confidence. This Daily Drill Down walks you through using every cipher switch and shows you exactly what happens in the real world when you use these switches.

While it may not always be the best choice in Windows, there are certain things you can only do from the command line. We've talked about a few command line essentials before, like using tracert to ...

There are numerous commands for encrypting files on Linux. When you want to limit access to file contents, you can use file permissions but file encryption makes limiting access much more effective.