7 Whole-Disk Encryption Apps Put A Lock On Data

Few IT professionals need to be lectured about data security. All too frequently we hear of the theft or loss of a computer or hard drive with data stored in the clear -- without encryption.

Fortunately, on-the-fly data encryption is no longer some exotic, costly beast. Rather than just encrypting single files, some applications are able to create virtual disks, either within a file or directly on a partition, where everything written to the disk is automatically encrypted. On modern hardware, the overhead for encryption is minimal; you no longer need dedicated hardware to make this happen.