The Altering of data so that it is not usable unless the changes are undone is

The Altering of data so that it is not usable unless the changes are undone is

Q. The Altering of data so that it is not usable unless the changes are undone is

A.            Biometrics

B.            Encryption

C.            Ergonomics

D.            Compression

Answer: Encryption

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