Encrypting stored data is easy...
...but keeping track of the decryption keys is much trickier. Yet you'll need to do just that in the coming years if Barbara Nelson is right. "The challenge of the next decade is managing the security of data at rest," suggests the CEO of NeoScale Systems. Information resting on tapes, CD-ROMs and other backup media is a snap to scramble so bad guys can't read it.
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